The short dictionary of medicine

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Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

#-A

  • a - the blood group whose red cells carry the A antigen
  • aa - a dry form of lava resembling clinkers
  • ab - the blood group whose red cells carry both the A and B antigens
  • abbreviated - (of clothing) very short
  • abbreviation - shortening something by omitting parts of it
  • abc - the elementary stages of any subject (usually plural)
  • abdomen - the region of the body of a vertebrate between the thorax and the pelvis
  • abdominal - of or relating to or near the abdomen
  • abduce - advance evidence for
  • abducens - a small motor nerve supplying the lateral rectus muscle of the eye
  • abducent - especially of muscles; drawing away from the midline of the body or from an adjacent part
  • abduct - pull away from the body
  • abducted - (of persons) seized and detained unlawfully, often for ransom
  • abduction - (physiology) moving of a body part away from the central axis of the body
  • abductor - a muscle that draws a body part away from the median line
  • aberrant - markedly different from an accepted norm
  • aberration - an optical phenomenon resulting from the failure of a lens or mirror to produce a good image
  • ability - the quality of being able to perform; a quality that permits or facilitates achievement or accomplishment
  • ablation - surgical removal of a body part or tissue
  • able - (usually followed by `to') having the necessary means or skill or know-how or authority to do something
  • abnormal - much greater than the normal
  • abnormality - behavior that breaches the rule or etiquette or custom or morality
  • abnormally - in an abnormal manner
  • abo - a dark-skinned member of a race of people living in Australia when Europeans arrived
  • abocclusion - the condition in which the upper teeth do not touch the lower teeth when biting
  • aboral - opposite to or away from the mouth
  • abort - the act of terminating a project or procedure before it is completed
  • abortifacient - causing abortion
  • abortion - termination of pregnancy
  • abortionist - a person (who should be a doctor) who terminates pregnancies
  • abortive - failing to accomplish an intended result
  • abortus - a human fetus whose weight is less than 0.5 kilogram when removed or expelled from the mother's body
  • about - on the move
  • above - appearing earlier in the same text
  • abraham - the first of the Old Testament patriarchs and the father of Isaac; according to Genesis, God promised to give Abraham's family (the Hebrews) the land of Canaan (the Promised Land); God tested Abraham by asking him to sacrifice his son
  • abrasion - erosion by friction
  • abrasive - causing abrasion
  • abreact - discharge bad feelings or tension through verbalization
  • abreaction - (psychoanalysis) purging of emotional tensions
  • abscess - symptom consisting of a localized collection of pus surrounded by inflamed tissue
  • absence - failure to be present
  • absent - lost in thought; showing preoccupation
  • absolute - perfect or complete or pure
  • absorb - cause to become one with
  • absorbable - capable of being absorbed or taken in through the pores of a surface
  • absorbed - taken in through the pores of a surface
  • absorbent - having power or capacity or tendency to absorb or soak up something (liquids or energy etc.)
  • absorbing - capable of arousing and holding the attention
  • absorption - (chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid
  • abstainer - a person who refrains from drinking intoxicating beverages
  • abstinence - act or practice of refraining from indulging an appetite
  • abulia - a loss of will power
  • abuse - a rude expression intended to offend or hurt
  • abused - subjected to cruel treatment
  • abuser - someone who abuses
  • academic - hypothetical or theoretical and not expected to produce an immediate or practical result
  • academy - a learned establishment for the advancement of knowledge
  • acanthosis - an abnormal but benign thickening of the prickle-cell layer of the skin (as in psoriasis)
  • acapnia - a state in which the level of carbon dioxide in the blood is lower than normal; can result from deep or rapid breathing
  • acariasis - infestation with itch mites
  • acaricide - a chemical agent used to kill mites
  • acarophobia - a morbid fear of small insects and mites and worms
  • accelerate - move faster
  • accept - tolerate or accommodate oneself to
  • acceptable - worthy of acceptance or satisfactory
  • accepted - generally approved or compelling recognition
  • access - the act of approaching or entering
  • accessory - furnishing added support
  • accident - anything that happens by chance without an apparent cause
  • accidental - without intention (especially resulting from heedless action)
  • accidentally - without advance planning
  • accommodation - (physiology) the automatic adjustment in focal length of the lens of the eye
  • accommodative - tending to reconcile or accommodate; bringing into harmony
  • accompanied - having accompaniment or companions or escort
  • accompanying - following as a consequence
  • according - (followed by `to') as reported or stated by
  • accouchement - the parturition process in human beings; having a baby; the process of giving birth to a child
  • account - the quality of taking advantage
  • accountability - responsibility to someone or for some activity
  • accountable - liable to account for one's actions
  • accounting - a system that provides quantitative information about finances
  • accretion - (law) an increase in a beneficiary's share in an estate (as when a co-beneficiary dies or fails to meet some condition or rejects the inheritance)
  • accumulate - collect or gather
  • accumulated - brought together into a group or crowd
  • accumulation - the act of accumulating
  • accurate - conforming exactly or almost exactly to fact or to a standard or performing with total accuracy
  • accurately - with few mistakes
  • accused - a defendant in a criminal proceeding
  • accustomed - (often followed by `to') in the habit of or adapted to
  • ace - of the highest quality
  • acebutolol - an oral beta blocker (trade name Sectral) used in treating hypertension
  • acetabulum - the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint
  • acetaminophen - an analgesic for mild pain; also used as an antipyretic; (Datril, Tylenol, Panadol, Phenaphen, Tempra, and Anacin III are trademarks of brands of acetaminophen tablets)
  • acetate - a salt or ester of acetic acid
  • acetic - relating to or containing acetic acid
  • acetone - the simplest ketone; a highly inflammable liquid widely used as an organic solvent and as material for making plastics
  • acetonuria - excessive amounts of ketone bodies in the urine as in diabetes mellitus or starvation
  • acetylcholine - a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems
  • ache - a dull persistent (usually moderately intense) pain
  • achieve - to gain with effort
  • achievement - the action of accomplishing something
  • achilles - a mythical Greek hero of the Iliad; a foremost Greek warrior at the siege of Troy; when he was a baby his mother tried to make him immortal by bathing him in a magical river but the heel by which she held him remained vulnerable--his `Achilles' heel'
  • aching - causing a dull and steady pain
  • achlorhydria - an abnormal deficiency or absence of free hydrochloric acid in the gastric juice; often associated with severe anemias and cancer of the stomach
  • acholia - a condition in which little or no bile is secreted or the flow of bile into the digestive tract is obstructed
  • achondroplasia - an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism
  • achy - causing a dull and steady pain
  • acid - having the characteristics of an acid
  • acidity - pH values below 7
  • acidosis - abnormally high acidity (excess hydrogen-ion concentration) of the blood and other body tissues
  • acidotic - having or being characterized by acidosis
  • acinus - one of the small sacs or saclike dilations in a compound gland
  • acne - an inflammatory disease involving the sebaceous glands of the skin; characterized by papules or pustules or comedones
  • acoustic - of or relating to the science of acoustics
  • acquired - gotten through environmental forces
  • acrocephaly - a congenital abnormality of the skull; the top of the skull assumes a cone shape
  • acrocyanosis - cyanosis of the extremities; can occur when a spasm of the blood vessels is caused by exposure to cold or by strong emotion
  • acromegaly - enlargement of bones of hands and feet and face; often accompanied by headache and muscle pain and emotional disturbances; caused by overproduction of growth hormone by the anterior pituitary gland (due to a tumor)
  • acromion - the outermost point of the spine of the shoulder blade
  • acrophobia - a morbid fear of great heights
  • across - transversely
  • act - something that people do or cause to happen
  • acth - a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  • acting - serving temporarily especially as a substitute
  • actinomycin - any of various red antibiotics isolated from soil bacteria
  • actinomycosis - disease of cattle that can be transmitted to humans; results from infection with actinomycetes; characterized by hard swellings that exude pus through long sinuses
  • action - something done (usually as opposed to something said)
  • activate - make active or more active
  • activated - set up and placed on active assignment
  • activating - causing motion or action or change
  • activator - (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription
  • active - characterized by energetic activity
  • activity - any specific behavior
  • acts - a New Testament book describing the development of the early church from Christ's Ascension to Paul's sojourn at Rome
  • actual - presently existing in fact and not merely potential or possible
  • actualisation - making real or giving the appearance of reality
  • actualization - making real or giving the appearance of reality
  • actually - used to imply that one would expect the fact to be the opposite of that stated; surprisingly
  • acuity - sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
  • acupressure - treatment of symptoms by applying pressure with the fingers to specific pressure points on the body
  • acupuncture - treatment of pain or disease by inserting the tips of needles at specific points on the skin
  • acute - having or experiencing a rapid onset and short but severe course
  • acutely - having a rapid onset
  • acyclovir - an oral antiviral drug (trade name Zovirax) used to treat genital herpes; does not cure the disease but relieves the symptoms
  • ad - in the Christian era; used before dates after the supposed year Christ was born
  • adad - Babylonian god of storms and wind
  • adam - street names for methylenedioxymethamphetamine
  • adams - a mountain peak in southwestern Washington in the Cascade Range (12,307 feet high)
  • adapt - make fit for, or change to suit a new purpose
  • adaptation - (physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light)
  • adapted - changed in order to improve or made more fit for a particular purpose
  • add - a condition (mostly in boys) characterized by behavioral and learning disorders
  • addict - someone who is physiologically dependent on a substance; abrupt deprivation of the substance produces withdrawal symptoms
  • addicted - compulsively or physiologically dependent on something habit-forming
  • addiction - (Roman law) a formal award by a magistrate of a thing or person to another person (as the award of a debtor to his creditor); a surrender to a master
  • addictive - causing or characterized by addiction
  • addition - the act of adding one thing to another
  • additional - further or added
  • additive - characterized or produced by addition
  • address - the stance assumed by a golfer in preparation for hitting a golf ball
  • addressed - (of mail) marked with a destination
  • adducent - especially of muscles; bringing together or drawing toward the midline of the body or toward an adjacent part
  • adduct - a compound formed by an addition reaction
  • adduction - (physiology) moving of a body part toward the central axis of the body
  • adductor - a muscle that draws a body part toward the median line
  • aden - an important port of Yemen; located on the Gulf of Aden; its strategic location have made it a major trading center of southern Arabia since ancient times
  • adenine - (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
  • adenitis - inflammation of a gland or lymph node
  • adenocarcinoma - malignant tumor originating in glandular epithelium
  • adenohypophysis - the anterior lobe of the pituitary body; primarily glandular in nature
  • adenoid - relating to or resembling lymphatic glands or lymphoid tissue
  • adenoidal - sounding as if the nose were pinched
  • adenoidectomy - surgical removal of the adenoids; commonly performed along with tonsillectomy
  • adenoma - a benign epithelial tumor of glandular origin
  • adenopathy - a glandular disease or enlargement of glandular tissue (especially of the lymph glands)
  • adenosine - (biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all living cells in a combined form as a constituent of DNA and RNA and ADP and ATP and AMP
  • adenosis - a disorder of the glands of the body
  • adenovirus - any of a group of viruses including those that in humans cause upper respiratory infections or infectious pinkeye
  • adequate - (sometimes followed by `to') meeting the requirements especially of a task
  • adequately - in an adequate manner
  • adh - hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules
  • adhd - a condition (mostly in boys) characterized by behavioral and learning disorders
  • adhere - follow through or carry out a plan without deviation
  • adhesion - a fibrous band of scar tissue that binds together normally separate anatomical structures
  • adhesive - tending to adhere
  • adipose - composed of animal fat
  • adiposis - the property of excessive fatness
  • adjacent - near or close to but not necessarily touching
  • adjective - relating to court practice and procedure as opposed to the principles of law
  • adjoining - having a common boundary or edge; touching
  • adjust - adapt or conform oneself to new or different conditions
  • adjustable - capable of being regulated
  • adjustment - the act of adjusting something to match a standard
  • adjuvant - enhancing the action of a medical treatment
  • administer - give or apply (medications)
  • administration - the act of administering medication
  • administrative - of or relating to or responsible for administration
  • administrator - someone who manages a government agency or department
  • admired - regarded with admiration
  • admission - the act of admitting someone to enter
  • admit - declare to be true or admit the existence or reality or truth of
  • adnexa - an accessory or adjoining anatomical parts or appendages (especially of the embryo)
  • adolescence - in the state that someone is in between puberty and adulthood
  • adolescent - in the state of development between puberty and maturity
  • adopt - take into one's family
  • adopted - acquired as your own by free choice
  • adoption - the act of accepting with approval; favorable reception
  • adoptive - of parents and children; related by adoption
  • adp - data processing by a computer
  • adrenal - of or pertaining to the adrenal glands or their secretions
  • adrenalectomy - surgical removal of one or both adrenal glands
  • adrenaline - a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action
  • adrenergic - relating to epinephrine (its release or action)
  • adrenocortical - of or derived from the cortex of the adrenal glands
  • adrenocorticotrophic - stimulating or acting on the adrenal cortex
  • adsorbent - having capacity or tendency to adsorb or cause to accumulate on a surface
  • adsorption - the accumulation of molecules of a gas to form a thin film on the surface of a solid
  • adult - (of animals) fully developed
  • adulteration - the act of adulterating (especially the illicit substitution of one substance for another)
  • advance - situated ahead or going before
  • advanced - (of societies) highly developed especially in technology or industry
  • advantage - benefit resulting from some event or action
  • adventitia - an enveloping or covering membrane or layer of body tissue
  • adventitious - associated by chance and not an integral part
  • adverb - the word class that qualifies verbs or clauses
  • adverse - in an opposing direction
  • adversely - in an adverse manner
  • advice - a proposal for an appropriate course of action
  • advisable - worthy of being recommended or suggested; prudent or wise
  • advise - inform (somebody) of something
  • advised - having received information
  • advisory - giving advice
  • advocacy - active support of an idea or cause etc.; especially the act of pleading or arguing for something
  • adynamic - lacking strength or vigor
  • aedes - yellow-fever mosquitos
  • aeration - the act of charging a liquid with a gas making it effervescent
  • aerobe - an organism (especially a bacterium) that requires air or free oxygen for life
  • aerobic - depending on free oxygen or air
  • aeroembolism - pain resulting from rapid change in pressure
  • aerophagia - swallowing air (usually followed by belching and discomfort and flatulence)
  • aeroplane - an aircraft that has a fixed wing and is powered by propellers or jets
  • aerosol - a dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas)
  • aetiological - relating to the etiology of a disease
  • aetiology - the philosophical study of causation
  • afebrile - having no fever
  • affairs - transactions of professional or public interest
  • affect - the conscious subjective aspect of feeling or emotion
  • affected - acted upon; influenced
  • affecting - arousing affect
  • affection - a positive feeling of liking
  • affective - characterized by emotion
  • afferent - of nerves and nerve impulses; conveying sensory information from the sense organs to the CNS
  • affinity - a natural attraction or feeling of kinship
  • aflatoxin - a potent carcinogen from the fungus Aspergillus; can be produced and stored for use as a bioweapon
  • afraid - filled with fear or apprehension
  • africa - the second largest continent; located south of Europe and bordered to the west by the South Atlantic and to the east by the Indian Ocean
  • african - of or relating to the nations of Africa or their peoples
  • after - located farther aft
  • afterbirth - the placenta and fetal membranes that are expelled from the uterus after the baby is born
  • aftercare - care and treatment of a convalescent patient
  • afternoon - the part of the day between noon and evening
  • afterpains - pains felt by a woman after her baby is born; associated with contractions of the uterus
  • afterwards - happening at a time subsequent to a reference time
  • ag - a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography
  • again - anew
  • agalactia - a condition in which milk is not secreted in the mother's breasts after her child has been delivered
  • agar - a colloidal extract of algae; used especially in culture media and as a gelling agent in foods
  • age - how long something has existed
  • aged - (used of tobacco) aging as a preservative process (`aged' is pronounced as one syllable)
  • ageing - growing old
  • agency - a business that serves other businesses
  • agenesis - imperfect development; nondevelopment of a part
  • agent - an active and efficient cause; capable of producing a certain effect
  • agglutinate - united as if by glue
  • agglutination - the building of words from component morphemes that retain their form and meaning in the process of combining
  • agglutinin - an antibody that causes agglutination of a specific antigen
  • agglutinogen - any substance that acts as an antigen to cause agglutinin production
  • aggravate - make worse
  • aggravating - making worse
  • aggregate - gathered or tending to gather into a mass or whole
  • aggregation - the act of gathering something together
  • aggression - violent action that is hostile and usually unprovoked
  • aggressive - having or showing determination and energetic pursuit of your ends
  • aging - growing old
  • agitated - troubled emotionally and usually deeply
  • agitation - the act of agitating something; causing it to move around (usually vigorously)
  • agnosia - inability to recognize objects by use of the senses
  • ago - gone by; or in the past
  • agonist - (biochemistry) a drug that can combine with a receptor on a cell to produce a physiological reaction
  • agony - intense feelings of suffering; acute mental or physical pain
  • agoraphobia - a morbid fear of open spaces (as fear of being caught alone in some public place)
  • agoraphobic - suffering from agoraphobia; abnormally afraid of open or public places
  • agranulocytosis - an acute blood disorder (often caused by radiation or drug therapy) characterized by severe reduction in granulocytes
  • agraphia - a loss of the ability to write or to express thoughts in writing because of a brain lesion
  • agree - consent or assent to a condition, or agree to do something
  • agreed - united by being of the same opinion
  • agreement - compatibility of observations
  • agriculture - the class of people engaged in growing food
  • ahead - having the leading position or higher score in a contest
  • aid - the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose
  • aided - having help; often used as a combining form
  • aids - a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles
  • ailment - an often persistent bodily disorder or disease; a cause for complaining
  • ailurophobia - a morbid fear of cats
  • aim - the action of directing something at an object
  • air - relating to or characteristic of or occurring in the air
  • airborne - moved or conveyed by or through air
  • aircraft - a vehicle that can fly
  • airsick - experiencing motion sickness
  • airsickness - motion sickness experienced while traveling by air (especially during turbulence)
  • airway - a commercial enterprise that provides scheduled flights for passengers
  • akinesia - motionlessness attributable to a temporary paralysis
  • al - a state in the southeastern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War
  • alalia - paralysis of the vocal cords resulting in an inability to speak
  • alanine - a crystalline amino acid that occurs in many proteins
  • alar - having or resembling wings
  • albee - United States dramatist (1928-)
  • albert - prince consort of Queen Victoria of England (1819-1861)
  • albinism - the congenital absence of pigmentation in the eyes and skin and hair
  • albino - a person with congenital albinism: white hair and milky skin; eyes are usually pink
  • albuginea - whitish tunic
  • albumin - a simple water-soluble protein found in many animal tissues and liquids
  • albuminuria - the presence of excessive protein (chiefly albumin but also globulin) in the urine; usually a symptom of kidney disorder
  • alcohol - a liquor or brew containing alcohol as the active agent
  • alcoholic - addicted to alcohol
  • alcoholism - habitual intoxication; prolonged and excessive intake of alcoholic drinks leading to a breakdown in health and an addiction to alcohol such that abrupt deprivation leads to severe withdrawal symptoms
  • aldosterone - a corticosteroid hormone that is secreted by the cortex of the adrenal gland; regulates salt (sodium and potassium) and water balance
  • aldosteronism - a condition caused by overproduction of aldosterone
  • alert - very attentive or observant
  • alexander - king of Macedon; conqueror of Greece and Egypt and Persia; founder of Alexandria (356-323 BC)
  • alexia - inability to perceive written words
  • alfred - king of Wessex; defeated the Danes and encouraged writing in English (849-899)
  • algid - chilly
  • algophobia - a morbid fear of pain
  • alienation - the action of alienating; the action of causing to become unfriendly
  • alignment - the act of adjusting or aligning the parts of a device in relation to each other
  • alimentary - of or providing nourishment
  • alimentation - the act of supplying food and nourishment
  • aliquot - signifying an exact divisor or factor of a quantity
  • alive - capable of erupting
  • alkali - a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture
  • alkaline - relating to or containing an alkali; having a pH greater than 7
  • alkalinity - pH values above 7
  • alkaloid - natural bases containing nitrogen found in plants
  • alkalosis - abnormally high alkalinity (low hydrogen-ion concentration) of the blood and other body tissues
  • alkaptonuria - a rare recessive metabolic anomaly marked by ochronosis and the presence of alkapton in the urine
  • all - completely given to or absorbed by
  • allantois - vascular fetal membrane that develops from the hindgut in embryonic higher vertebrates (reptiles, birds and mammals)
  • allele - either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character
  • allergen - any substance that can cause an allergy
  • allergenic - relating to or having the effect of an allergen
  • allergic - having an allergy or peculiar or excessive susceptibility (especially to a specific factor)
  • allergist - a physician skilled in the diagnosis and treatment of allergies
  • allergy - hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity
  • alleviate - provide physical relief, as from pain
  • allied - joined by treaty or agreement
  • allocation - (computer science) the assignment of particular areas of a magnetic disk to particular data or instructions
  • allogeneic - denoting or relating to cells or tissues from individuals belonging to the same species but genetically dissimilar (and hence immunologically incompatible)
  • allograft - tissue or organ transplanted from a donor of the same species but different genetic makeup; recipient's immune system must be suppressed to prevent rejection of the graft
  • allopathy - the usual method of treating disease with remedies that produce effects differing from those produced by the disease itself
  • allopurinol - a drug (trade name Zyloprim) used to treat gout and other conditions in which there is an excessive buildup of uric acid
  • allow - allow or plan for a certain possibility; concede the truth or validity of something
  • allowance - the act of allowing
  • almost - (of actions or states) slightly short of or not quite accomplished
  • alone - radically distinctive and without equal
  • along - with a forward motion
  • alopecia - loss of hair (especially on the head) or loss of wool or feathers; in humans it can result from heredity or hormonal imbalance or certain diseases or drugs and treatments (chemotherapy for cancer)
  • alpha - early testing stage of a software or hardware product
  • alphabet - a character set that includes letters and is used to write a language
  • already - prior to a specified or implied time
  • als - thickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord; results in progressive muscle atrophy that starts in the limbs
  • also - in addition
  • alt - angular distance above the horizon (especially of a celestial object)
  • alter - remove the ovaries of
  • alteration - the act of making something different (as e.g. the size of a garment)
  • altered - changed in form or character without becoming something else
  • altering - the sterilization of an animal
  • alternate - occurring by turns; first one and then the other
  • alternately - in an alternating sequence or position
  • alternating - (of a current) reversing direction
  • alternative - necessitating a choice between mutually exclusive possibilities
  • alternatively - in place of, or as an alternative to
  • altitude - elevation especially above sea level or above the earth's surface
  • alum - a double sulphate of aluminum and potassium that is used as an astringent (among other things)
  • aluminium - a silvery ductile metallic element found primarily in bauxite
  • aluminum - a silvery ductile metallic element found primarily in bauxite
  • alveolar - pertaining to the tiny air sacs of the lungs
  • alveolitis - inflammation of the alveoli in the lungs caused by inhaling dust; with repeated exposure the condition may become chronic
  • alveolus - a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways
  • always - at all times; all the time and on every occasion
  • alzheimers - a progressive form of presenile dementia that is similar to senile dementia except that it usually starts in the 40s or 50s; first symptoms are impaired memory which is followed by impaired thought and speech and finally complete helplessness
  • am - modulation of the amplitude of the (radio) carrier wave
  • amalgam - a combination or blend of diverse things
  • amateur - engaged in as a pastime
  • amaurosis - partial or total loss of sight without pathology of the eye; caused by disease of optic nerve or retina or brain
  • amaurotic - pertaining to blindness caused by amaurosis
  • ambidextrous - marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another
  • ambiguous - having more than one possible meaning
  • amblyopia - visual impairment without apparent organic pathology
  • amblyopic - pertaining to a kind of visual impairment without apparent organic pathology
  • ambulance - a vehicle that takes people to and from hospitals
  • ambulant - able to walk about
  • ambulation - walking about
  • ambulatory - relating to or adapted for walking
  • ameba - naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion
  • amelia - congenital absence of an arm or leg
  • amelioration - the act of relieving ills and changing for the better
  • amenorrhoea - absence or suppression of normal menstrual flow
  • america - North America and South America and Central America
  • american - of or relating to or characteristic of the continents and islands of the Americas
  • ametropia - (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia
  • amino - pertaining to or containing any of a group of organic compounds of nitrogen derived from ammonia
  • aminophylline - a theophylline derivative that is used as a bronchodilator in the treatment of bronchial asthma, emphysema, and bronchitis
  • aminotransferase - a class of transferases that catalyze transamination (that transfer an amino group from an amino acid to another compound)
  • amiodarone - an antiarrhythmic drug (trade name Cordarone) that has potentially fatal side effects and is used to control serious heart rhythm problems only when safer agents have been ineffective
  • amitosis - the direct method of cell division characterized by simple division of the nucleus without formation of chromosomes
  • amitriptyline - a tricyclic antidepressant drug (trade name Elavil) with serious side effects; interacts with many other medications
  • ammonia - a pungent gas compounded of nitrogen and hydrogen (NH3)
  • ammonium - the ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion
  • amnesia - partial or total loss of memory
  • amnio - (pregnancy) extraction by centesis of amniotic fluid from a pregnant woman (after the 15th week of pregnancy) to aid in the diagnosis of fetal abnormalities
  • amniocentesis - (pregnancy) extraction by centesis of amniotic fluid from a pregnant woman (after the 15th week of pregnancy) to aid in the diagnosis of fetal abnormalities
  • amnion - thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
  • amniotic - of or related to the amnion or characterized by developing an amnion
  • amoeba - naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion
  • amoebiasis - infection by a disease-causing ameba
  • amoebic - pertaining to or resembling amoebae
  • amorphous - without real or apparent crystalline form
  • amos - an Old Testament book telling Amos's prophecies
  • amount - how much of something is available
  • amoxicillin - an antibiotic; a semisynthetic oral penicillin (trade names Amoxil and Larotid and Polymox and Trimox and Augmentin) used to treat bacterial infections
  • amoxil - an antibiotic; a semisynthetic oral penicillin (trade names Amoxil and Larotid and Polymox and Trimox and Augmentin) used to treat bacterial infections
  • amphetamine - a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
  • amphotericin - an antibiotic and antifungal agent
  • ampicillin - semisynthetic penicillin (trade names Principen and Polycillin and SK-Ampicillin)
  • amplifier - electronic equipment that increases strength of signals passing through it
  • amplify - increase the volume of
  • ampoule - a small bottle that contains a drug (especially a sealed sterile container for injection by needle)
  • ampule - a small bottle that contains a drug (especially a sealed sterile container for injection by needle)
  • ampulla - a flask that has two handles; used by Romans for wines or oils
  • amputate - remove surgically
  • amputation - a surgical removal of all or part of a limb
  • amputee - someone who has had a limb removed by amputation
  • amsterdam - an industrial center and the nominal capital of the Netherlands; center of the diamond-cutting industry; seat of an important stock exchange; known for its canals and art museum
  • amusing - arousing or provoking laughter
  • amygdala - an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum; intimately connected with the hypothalamus and the hippocampus and the cingulate gyrus; as part of the limbic system it plays an important role in motivation and emotional behavior
  • amygdaloid - shaped like an almond
  • amyl - a hydrocarbon radical that occurs in many organic compounds
  • amylase - any of a group of proteins found in saliva and pancreatic juice and parts of plants; help convert starch to sugar
  • amyloid - resembling starch
  • amyloidosis - a disorder characterized by deposit of amyloid in organs or tissues; often secondary to chronic rheumatoid arthritis or tuberculosis or multiple myeloma
  • amyotonia - lack of normal muscular tension or tonus
  • amyotrophia - progressive wasting of muscle tissues
  • amyotrophy - progressive wasting of muscle tissues
  • an - an associate degree in nursing
  • ana - a collection of anecdotes about a person or place
  • anabolic - characterized by or promoting constructive metabolism
  • anabolism - the synthesis in living organisms of more complex substances (e.g., living tissue) from simpler ones together with the storage of energy
  • anaemia - a deficiency of red blood cells
  • anaemic - lacking vigor or energy
  • anaerobe - an organism (especially a bacterium) that does not require air or free oxygen to live
  • anaerobic - living or active in the absence of free oxygen
  • anaesthesia - loss of bodily sensation with or without loss of consciousness
  • anaesthetic - characterized by insensibility
  • anaesthetise - make unconscious by means of anesthetic drugs
  • anaesthetised - rendered insensible by means of anesthesia
  • anaesthetist - a specialist who administers an anesthetic to a patient before he is treated
  • anaesthetize - make unconscious by means of anesthetic drugs
  • anal - a stage in psychosexual development when the child's interest is concentrated on the anal region; fixation at this stage is said to result in orderliness, meanness, stubbornness, compulsiveness, etc.
  • analeptic - stimulating the central nervous system
  • analgesia - absence of the sense of pain without loss of consciousness
  • analgesic - capable of relieving pain
  • analyse - subject to psychoanalytic treatment
  • analyser - an instrument that performs analyses
  • analysis - an investigation of the component parts of a whole and their relations in making up the whole
  • analyst - a licensed practitioner of psychoanalysis
  • analyze - subject to psychoanalytic treatment
  • analyzer - an instrument that performs analyses
  • anamnesis - the ability to recall past occurrences
  • anamnestic - of or relating to anamnesis; aiding the memory
  • anaphase - the stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle
  • anaphylactic - related to the hypersensitivity known as anaphylaxis
  • anaphylaxis - hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance
  • anaplasia - loss of structural differentiation within a cell or group of cells often with increased capacity for multiplication, as in a malignant tumor
  • anaplastic - of or relating to anaplasia
  • anarthria - partial or total loss of articulate speech resulting from lesions of the central nervous system
  • anasarca - generalized edema with accumulation of serum in subcutaneous connective tissue
  • anastomose - cause to join or open into each other by anastomosis
  • anastomosis - a natural or surgical joining of parts or branches of tubular structures so as to make or become continuous
  • anatomical - of or relating to the structure of the body
  • anatomist - an expert in anatomy
  • anatomy - a detailed analysis
  • ancient - very old
  • ancillary - furnishing added support
  • androgen - male sex hormone that is produced in the testes and responsible for typical male sexual characteristics
  • androgenic - of or related to the male hormone androgen
  • androgynous - having both male and female characteristics
  • androsterone - an androgenic hormone that is less active than testosterone
  • anemia - genus of terrestrial or lithophytic ferns having pinnatifid fronds; chiefly of tropical America
  • anemic - lacking vigor or energy
  • anencephalous - characterized by partial or total absence of a brain
  • anencephaly - a defect in brain development resulting in small or missing brain hemispheres
  • anergy - inactivity and lack of energy
  • anesthesia - loss of bodily sensation with or without loss of consciousness
  • aneurysm - a cardiovascular disease characterized by a saclike widening of an artery resulting from weakening of the artery wall
  • anger - a strong emotion; a feeling that is oriented toward some real or supposed grievance
  • angiitis - inflammation of a blood vessel or lymph duct
  • angina - any disease of the throat or fauces marked by spasmodic attacks of intense suffocative pain
  • anginal - of or related to the pain of angina pectoris
  • angiocardiogram - a series of X rays representing the action of the heart and its blood vessels after the injection of a radiopaque substance
  • angiogenesis - the formation of new blood vessels
  • angiogram - an X-ray representation of blood vessels made after the injection of a radiopaque substance
  • angiography - roentgenographic examination of blood vessels after injection of a radiopaque contrast medium; produces an angiogram
  • angiology - the branch of medical science that studies the blood and lymph vessels and their disorders
  • angioma - a tumor consisting of a mass of blood or lymphatic vessels
  • angiopathy - any disease of the blood vessels or lymph ducts
  • angioplasty - an operation to repair a damaged blood vessel or unblock a coronary artery
  • angiosarcoma - a rare malignant neoplasm arising from vascular tissue; usually occurs in the breast and skin and is believed to originate from the endothelial cells of blood vessels
  • angioscope - a modified microscope used to study capillary vessels
  • angiotensin - any of several vasoconstrictor substances (trade name Hypertensin) that cause narrowing of blood vessels
  • angle - a member of a Germanic people who conquered England and merged with the Saxons and Jutes to become Anglo-Saxons
  • angrily - with anger
  • angry - feeling or showing anger
  • angular - having angles or an angular shape
  • anhedonia - an inability to experience pleasure
  • anhidrosis - failure of the sweat glands
  • anhydrous - without water; especially without water of crystallization
  • ani - black tropical American cuckoo
  • animal - of the nature of or characteristic of or derived from an animal or animals
  • anisometropia - difference in the refractive power of the two eyes
  • ankle - a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus
  • anklebone - the bone in the ankle that articulates with the leg bones to form the ankle joint
  • ankylose - undergo ankylosis
  • ankylosis - abnormal adhesion and rigidity of the bones of a joint
  • annoy - cause annoyance in; disturb, especially by minor irritations
  • annoyed - aroused to impatience or anger
  • annual - completing its life cycle within a year
  • annually - without missing a year
  • annular - shaped like a ring
  • annulus - (Fungi) remnant of the partial veil that in mature mushrooms surrounds the lower part of the stem
  • ano - a Palestinian international terrorist organization that split from the PLO in 1974; has conducted terrorist attacks in 20 countries
  • anodyne - capable of relieving pain
  • anomalous - deviating from the general or common order or type
  • anomaly - (astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun)
  • anomie - lack of moral standards in a society
  • anonymous - having no known name or identity or known source
  • anopheles - malaria mosquitoes; distinguished by the adult's head-downward stance and absence of breathing tubes in the larvae
  • anorchism - absence of one of both testes
  • anorectal - pertaining to the anus and rectum considered together
  • anorectic - causing loss of appetite
  • anorexia - a prolonged disorder of eating due to loss of appetite
  • anorexic - suffering from anorexia nervosa; pathologically thin
  • anosmia - absence of the sense of smell (as by damage to olfactory nasal tissue or the olfactory nerve or by obstruction of the nasal passages)
  • another - any of various alternatives; some other
  • anovulant - a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception
  • anovulation - the absence of ovulation due to immaturity or post-maturity or pregnancy or oral contraceptive pills or dysfunction of the ovary
  • anoxia - severe hypoxia; absence of oxygen in inspired gases or in arterial blood or in the tissues
  • anoxic - relating to or marked by a severe deficiency of oxygen in tissues or organs
  • answer - a nonverbal reaction
  • antacid - acting to neutralize acid (especially in the stomach)
  • antagonism - (biochemistry) interference in or inhibition of the physiological action of a chemical substance by another having a similar structure
  • antagonist - a drug that neutralizes or counteracts the effects of another drug
  • ante - (poker) the initial contribution that each player makes to the pot
  • antemortem - preceding death
  • antenatal - occurring or existing before birth
  • antepartum - occurring or existing before birth
  • anterior - earlier in time
  • anterograde - of amnesia; affecting time immediately following trauma
  • anthelmintic - capable of expelling or destroying parasitic worms
  • anthony - United States suffragist (1820-1906)
  • anthracosis - lung disease caused by inhaling coal dust
  • anthrax - a disease of humans that is not communicable; caused by infection with Bacillus anthracis followed by septicemia
  • anthropologist - a social scientist who specializes in anthropology
  • anthropometry - measurement and study of the human body and its parts and capacities
  • anti - not in favor of (an action or proposal etc.)
  • antiarrhythmic - a drug used to treat an abnormal heart rhythm
  • antibacterial - destroying bacteria or inhibiting their growth
  • antibiotic - of or relating to antibiotic drugs
  • antibody - any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
  • anticholinergic - inhibiting or blocking the action of acetylcholine at a receptor site
  • anticholinesterase - a medicine that inhibits cholinesterase by combining with it and so has a cholinergic effect
  • anticoagulant - medicine that prevents or retards the clotting of blood
  • anticonvulsant - a drug used to treat or prevent convulsions (as in epilepsy)
  • antidepressant - any of a class of drugs used to treat depression; often have undesirable side effects
  • antidiabetic - a drug used to treat diabetes mellitus
  • antidiarrheal - a drug used to control or stop diarrhea
  • antidiuretic - a drug that limits the formation of urine
  • antidote - a remedy that stops or controls the effects of a poison
  • antiemetic - a drug that prevents or alleviates nausea and vomiting
  • antiepileptic - a drug used to treat or prevent convulsions (as in epilepsy)
  • antifungal - capable of destroying fungi
  • antigen - any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)
  • antigenic - of or relating to antigens
  • antihistamine - a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site
  • antihypertensive - a drug that reduces high blood pressure
  • antimalarial - a medicinal drug used to prevent or treat malaria
  • antimetabolite - an antineoplastic drug that inhibits the utilization of a metabolite
  • antimicrobial - capable of destroying or inhibiting the growth of disease-causing microorganisms
  • antimycotic - any agent that destroys or prevents the growth of fungi
  • antioxidant - substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides
  • antiperspirant - an astringent substance applied to the skin to reduce perspiration
  • antipruritic - a substance that relieves or prevents itching
  • antipsychotic - tranquilizer used to treat psychotic conditions when a calming effect is desired
  • antipyretic - preventing or alleviating fever
  • antisepsis - the process of inhibiting the growth and multiplication of microorganisms
  • antiseptic - (extended sense) of exceptionally clean language
  • antiserum - blood serum containing antibodies against specific antigens; provides immunity to a disease
  • antisocial - hostile to or disruptive of normal standards of social behavior
  • antispasmodic - a drug used to relieve or prevent spasms (especially of the smooth muscles)
  • antitoxic - counteracting a toxin or poison
  • antitoxin - an antibody that can neutralize a specific toxin
  • antitussive - any medicine used to suppress or relieve coughing
  • antivenene - an antitoxin that counteracts the effects of venom from the bite of a snake or insect or other animal
  • antivenin - an antitoxin that counteracts the effects of venom from the bite of a snake or insect or other animal
  • antiviral - inhibiting or stopping the growth and reproduction of viruses
  • antrum - a natural cavity or hollow in a bone
  • anuria - inability to urinate
  • anus - excretory opening at the end of the alimentary canal
  • anvil - a heavy block of iron or steel on which hot metals are shaped by hammering
  • anxiety - a vague unpleasant emotion that is experienced in anticipation of some (usually ill-defined) misfortune
  • anxiolytic - anxiety relieving
  • anxious - eagerly desirous
  • any - one or some or every or all without specification
  • anything - a thing of any kind
  • aorta - the large trunk artery that carries blood from the left ventricle of the heart to branch arteries
  • aortic - of or relating to the aorta
  • aortitis - inflammation of the aorta
  • apart - remote and separate physically or socially
  • apathetic - marked by a lack of interest
  • apathy - the trait of lacking enthusiasm for or interest in things generally
  • aperient - mildly laxative
  • aperture - an man-made opening; usually small
  • apex - the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars
  • aphagia - loss of the ability to swallow
  • aphakia - absence of the natural lens of the eye (usually resulting from the removal of cataracts)
  • aphakic - of or relating to or afflicted with aphakia
  • aphasia - inability to use or understand language (spoken or written) because of a brain lesion
  • apheresis - a procedure in which blood is drawn and separated into its components by dialysis; some are retained and the rest are returned to the donor by transfusion
  • aphonia - a disorder of the vocal organs that results in the loss of voice
  • aphrodisiac - exciting sexual desire
  • apical - situated at an apex
  • aplasia - failure of some tissue or organ to develop
  • apnea - transient cessation of respiration
  • apneic - of or relating to apnea
  • apnoeic - of or relating to apnea
  • apocrine - (of exocrine glands) producing a secretion in which part of the secreting cell is released with the secretion
  • apomorphine - a morphine derivative that is not as strong as morphine; used as an emetic and in small doses as a sedative
  • aponeurosis - any of the deeper and thicker fascia that attach muscles to bones; resemble flattened tendons
  • apophyseal - of or relating to an apophysis
  • apophysis - (anatomy) a natural outgrowth or projection on an organ or body part such as the process of a vertebra
  • apoplexy - a sudden loss of consciousness resulting when the rupture or occlusion of a blood vessel leads to oxygen lack in the brain
  • apoptosis - a type of cell death in which the cell uses specialized cellular machinery to kill itself; a cell suicide mechanism that enables metazoans to control cell number and eliminate cells that threaten the animal's survival
  • apparatus - equipment designed to serve a specific function
  • apparent - clearly revealed to the mind or the senses or judgment
  • apparently - from appearances alone
  • appear - come into sight or view
  • appearance - the act of appearing in public view
  • appearing - formal attendance (in court or at a hearing) of a party in an action
  • appendage - a part that is joined to something larger
  • appendectomy - surgical removal of the vermiform appendix
  • appendicectomy - surgical removal of the vermiform appendix
  • appendicitis - inflammation of the vermiform appendix
  • appendicular - relating to or consisting of an appendage or appendages; especially the limbs
  • appendix - a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
  • apperception - the process whereby perceived qualities of an object are related to past experience
  • appetite - a feeling of craving something
  • apple - fruit with red or yellow or green skin and sweet to tart crisp whitish flesh
  • appliance - durable goods for home or office use
  • application - a diligent effort
  • applicator - a device for applying a substance
  • applied - concerned with concrete problems or data rather than with fundamental principles; opposed to theoretical
  • apply - ask (for something)
  • appointed - selected for a job
  • appointment - (law) the act of disposing of property by virtue of the power of appointment
  • apposition - (biology) growth in the thickness of a cell wall by the deposit of successive layers of material
  • appraisal - the classification of someone or something with respect to its worth
  • apprehension - the act of apprehending (especially apprehending a criminal)
  • approach - the act of drawing spatially closer to something
  • approaching - of the relatively near future
  • appropriate - suitable for a particular person or place or condition etc
  • appropriateness - the quality of being specially suitable
  • approve - judge to be right or commendable; think well of
  • approved - generally or especially officially judged acceptable or satisfactory
  • approximately - (of quantities) imprecise but fairly close to correct
  • apraxia - inability to make purposeful movements
  • april - the month following March and preceding May
  • aqua - a shade of blue tinged with green
  • aqueduct - a conduit that resembles a bridge but carries water over a valley
  • aqueous - produced by the action of water
  • ar - a state in south central United States; one of the Confederate states during the American Civil War
  • arachnoid - relating to or resembling a member of the class Arachnida
  • arbor - a framework that supports climbing plants
  • arbovirus - a large heterogeneous group of RNA viruses divisible into groups on the basis of the virions; they have been recovered from arthropods, bats, and rodents; most are borne by arthropods; they are linked by the epidemiologic concept of transmission between vertebrate hosts by arthropod vectors (mosquitoes, ticks, sandflies, midges, etc.) that feed on blood; they can cause mild fevers, hepatitis, hemorrhagic fever, and encephalitis
  • arc - a continuous portion of a circle
  • arch - expert in skulduggery
  • arched - constructed with or in the form of an arch or arches
  • arcuate - forming or resembling an arch
  • arcus - an whitish deposit in the shape of an arc that is sometimes seen in the cornea
  • ards - acute lung injury characterized by coughing and rales; inflammation of the lungs which become stiff and fibrous and cannot exchange oxygen; occurs among persons exposed to irritants such as corrosive chemical vapors or ammonia or chlorine etc.
  • are - a unit of surface area equal to 100 square meters
  • area - a part of a structure having some specific characteristic or function
  • areola - small circular area such as that around the human nipple or an inflamed area around a pimple or insect bite
  • areolar - relating to or like or divided into areolae
  • arginine - a bitter tasting amino acid found in proteins and necessary for nutrition; its absence from the diet leads to a reduced production of spermatozoa
  • argon - a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
  • argument - a variable in a logical or mathematical expression whose value determines the dependent variable; if f(x)=y, x is the independent variable
  • argyll - a covered gravy holder of silver or other metal containing a detachable central vessel for hot water to keep the gravy warm
  • arise - result or issue
  • arm - the part of an armchair or sofa that supports the elbow and forearm of a seated person
  • armpit - the hollow under the arm where it is joined to the shoulder
  • arms - the official symbols of a family, state, etc.
  • army - a large number of people united for some specific purpose
  • arnold - United States general and traitor in the American Revolution; in 1780 his plan to surrender West Point to the British was foiled (1741-1801)
  • aromatic - having a strong pleasant odor
  • around - in circumference
  • arousal - the act of arousing
  • aroused - (of persons) excessively affected by emotion
  • arrange - arrange thoughts, ideas, temporal events
  • arranged - deliberately arranged for effect
  • arrangement - the act of arranging and adapting a piece of music
  • arranging - the act of arranging and adapting a piece of music
  • arrest - the state of inactivity following an interruption
  • arrested - having development checked or reversed
  • arrhythmia - an abnormal rate of muscle contractions in the heart
  • arrhythmic - without regard for rhythm
  • arrival - accomplishment of an objective
  • arrive - reach a destination; arrive by movement or progress
  • arsenic - a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
  • art - the creation of beautiful or significant things
  • artefact - a man-made object taken as a whole
  • arterial - of or involving or contained in the arteries
  • arteriogram - an X ray of an artery filled with a contrast medium
  • arteriography - roentgenographic examination of arteries
  • arteriole - one of the small thin-walled arteries that end in capillaries
  • arteriosclerosis - sclerosis of the arterial walls
  • arteriovenous - connecting an artery to a vein
  • arteritis - inflammation of an artery
  • artery - a major thoroughfare that bears important traffic
  • arthralgia - pain in a joint or joints
  • arthritic - of or pertaining to arthritis
  • arthritis - inflammation of a joint or joints
  • arthrodesis - the surgical fixation of a joint which is intended to result in bone fusion
  • arthrogram - an X ray of a joint after the injection of a contrast medium
  • arthrography - roentgenographic examination of a joint after injection of radiopaque contrast medium; produces an arthrogram
  • arthropathy - a pathology or abnormality of a joint
  • arthroplasty - surgical reconstruction or replacement of a malformed or degenerated joint
  • arthroscope - a type of endoscope that is inserted into a joint for visual examination
  • arthroscopy - a minimally invasive operation to repair a damaged joint; the surgeon examines the joint with an arthroscope while making repairs through a small incision
  • arthur - a legendary king of the Britons (possibly based on a historical figure in the 6th century but the story has been retold too many times to be sure); said to have led the Knights of the Round Table at Camelot
  • article - one of a class of artifacts
  • articular - relating to or affecting the joints of the body
  • articulate - expressing yourself easily or characterized by clear expressive language
  • articulated - pronounced distinctly and clearly
  • articulation - the act of joining things in such a way that motion is possible
  • artificial - artificially formal
  • artificially - not according to nature; not by natural means
  • arytenoid - either of two small cartilages at the back of the larynx to which the vocal folds are attached
  • as - to the same degree (often followed by `as')
  • asbestos - a fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer
  • asbestosis - lung disease caused by inhaling asbestos particles
  • ascariasis - infestation of the human intestine with Ascaris roundworms
  • ascaris - type genus of the family Ascaridae: roundworms with a three-lipped mouth
  • ascending - moving or going or growing upward
  • ascites - accumulation of serous fluid in peritoneal cavity
  • asepsis - (of non-living objects) the state of being free of pathogenic organisms
  • aseptic - free of or using methods to keep free of pathological microorganisms
  • asexual - not having or involving sex
  • asia - the nations of the Asian continent collectively
  • asian - denoting or characteristic of the biogeographic region including southern Asia and the Malay Archipelago as far as the Philippines and Borneo and Java
  • ask - make a request or demand for something to somebody
  • asking - relating to the use of or having the nature of an interrogation
  • asleep - dead
  • asparagine - a crystalline amino acid found in proteins and in many plants (e.g., asparagus)
  • aspartame - an artificial sweetener made from aspartic acid; used as a calorie-free sweetener
  • aspect - a characteristic to be considered
  • aspergillosis - disease especially in agricultural workers caused by inhalation of Aspergillus spores causing lumps in skin and ears and respiratory organs
  • aspergillus - genus of common molds causing food spoilage and some pathogenic to plants and animals
  • asphyxia - a condition in which insufficient or no oxygen and carbon dioxide are exchanged on a ventilatory basis; caused by choking or drowning or electric shock or poison gas
  • asphyxiate - be asphyxiated; die from lack of oxygen
  • asphyxiated - in a state of asphyxia
  • asphyxiation - killing by depriving of oxygen
  • aspirate - a consonant pronounced with aspiration
  • aspiration - a will to succeed
  • aspirator - a pump that draws air or another gas through a liquid
  • aspirin - the acetylated derivative of salicylic acid; used as an analgesic anti-inflammatory drug (trade names Bayer and Empirin) usually taken in tablet form; used as an antipyretic; slows clotting of the blood by poisoning platelets
  • assay - a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or antibodies etc.
  • assembled - formed by fitting or joining components together
  • assess - estimate the value of (property) for taxation
  • assessment - the market value set on assets
  • assigned - appointed to a post or duty
  • assigning - the act of distributing something to designated places or persons
  • assimilate - become similar to one's environment
  • assimilating - capable of taking (gas,light, or liquids into a solution)
  • assimilation - in the theories of Jean Piaget: the application of a general schema to a particular instance
  • assist - (sports) the act of enabling another player to make a good play
  • assistance - the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose
  • assistant - of or relating to a person who is subordinate to another
  • assisted - having help; often used as a combining form
  • associate - having partial rights and privileges or subordinate status
  • associated - related to or accompanying
  • association - the act of consorting with or joining with others
  • assumed - accepted as real or true without proof
  • assurance - freedom from doubt; belief in yourself and your abilities
  • asthenia - an abnormal loss of strength
  • asthenic - having a slender physique
  • asthenopia - a tiredness of the eyes caused by prolonged close work by a person with an uncorrected vision problem
  • asthma - respiratory disorder characterized by wheezing; usually of allergic origin
  • asthmatic - relating to breathing with a whistling sound
  • astigmatic - of or relating to a defect in the eye or in a lens caused by a deviation from spherical curvature which prevents light rays from meeting at a common focus and so results in distorted images
  • astigmatism - (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
  • astragalus - large genus of annual or perennial herbs or shrubs of north temperate regions; largest genus in the family Leguminosae
  • astringent - tending to draw together or constrict soft organic tissue
  • astrocyte - comparatively large neuroglial cell
  • astronomer - a physicist who studies astronomy
  • asymmetric - characterized by asymmetry in the spatial arrangement or placement of parts or components
  • asymmetry - (mathematics) a lack of symmetry
  • asymptomatic - having no symptoms of illness or disease
  • asynclitism - the presentation during labor of the head of the fetus at an abnormal angle
  • asynergia - absence of coordination of organs or body parts that usually work together harmoniously
  • asynergy - absence of coordination of organs or body parts that usually work together harmoniously
  • asystole - absence of systole; failure of the ventricles of the heart to contract (usually caused by ventricular fibrillation) with consequent absence of the heart beat leading to oxygen lack and eventually to death
  • at - 100 at equal 1 kip in Laos
  • ataractic - tending to soothe or tranquilize
  • ataraxia - peace of mind
  • ataraxic - tending to soothe or tranquilize
  • ataraxis - the absence of mental stress or anxiety
  • ataxia - inability to coordinate voluntary muscle movements; unsteady movements and staggering gait
  • ataxic - lacking motor coordination; marked or caused by ataxia
  • ataxy - inability to coordinate voluntary muscle movements; unsteady movements and staggering gait
  • atelectasis - collapse of an expanded lung (especially in infants); also failure of pulmonary alveoli to expand at birth
  • atenolol - an oral beta blocker (trade name Tenormin) used in treating hypertension and angina; has adverse side effects (depression and exacerbation of congestive heart failure etc.)
  • atherogenesis - the formation of atheromas on the walls of the arteries as in atherosclerosis
  • atheroma - a fatty deposit in the intima (inner lining) of an artery; can obstruct blood flow
  • atheromatous - of or relating to or resembling atheroma
  • atherosclerosis - a stage of arteriosclerosis involving fatty deposits (atheromas) inside the arterial walls
  • atherosclerotic - of or relating to atherosclerosis
  • athetosis - a continuous succession of slow, writhing, involuntary movements of the hands and feet and other body parts
  • athletic - having a sturdy and well proportioned body
  • athletics - participation in sports events as an extracurricular activity
  • atlas - a figure of a man used as a supporting column
  • atmosphere - the mass of air surrounding the Earth
  • atmospheric - relating to or located in the atmosphere
  • atom - (nontechnical usage) a tiny piece of anything
  • atomic - immeasurably small
  • atomiser - a dispenser that turns a liquid (such as perfume) into a fine mist
  • atonic - used of syllables
  • atony - lack of normal muscular tension or tonus
  • atopy - an allergic reaction that becomes apparent in a sensitized person only minutes after contact
  • atp - a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions
  • atresia - an abnormal condition in which a normal opening or tube in the body (as the urethra) is closed or absent
  • atrial - of or relating to a cavity or chamber in the body (especially one of the upper chambers of the heart)
  • atrioventricular - relating to or affecting the atria and ventricles of the heart
  • atrium - the central area in a building; open to the sky
  • atrophic - relating to or characterized by atrophy
  • atrophied - (of an organ or body part) diminished in size or strength as a result of disease or injury or lack of use
  • atrophy - any weakening or degeneration (especially through lack of use)
  • atropine - a poisonous crystalline alkaloid extracted from the nightshade family; used as an antispasmodic and to dilate the eye pupil; also administered in large amounts as an antidote for organophosphate nerve agents or organophosphate insecticides
  • attach - be attached; be in contact with
  • attached - associated in an exclusive sexual relationship
  • attachment - the act of attaching or affixing something
  • attack - a decisive manner of beginning a musical tone or phrase
  • attacking - disposed to attack
  • attain - reach a point in time, or a certain state or level
  • attempt - earnest and conscientious activity intended to do or accomplish something
  • attempted - tried unsuccessfully
  • attend - give heed (to)
  • attending - being present (at meeting or event etc.)
  • attention - a courteous act indicating affection
  • attenuation - the property of something that has been weakened or reduced in thickness or density
  • attitude - a theatrical pose created for effect
  • attract - exert a force on (a body) causing it to approach or prevent it from moving away
  • attraction - the quality of arousing interest; being attractive or something that attracts
  • attractive - pleasing to the eye or mind especially through beauty or charm
  • attributable - capable of being attributed
  • attrition - the act of rubbing together; wearing something down by friction
  • atypical - deviating from normal expectations; somewhat odd, strange, or abnormal
  • au - a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers)
  • audible - heard or perceptible by the ear
  • audience - a gathering of spectators or listeners at a (usually public) performance
  • audio - the sound elements of television
  • audiogram - a graphical representation of a person's auditory sensitivity to sound
  • audiology - the measurement of hearing
  • audiometer - an instrument used to measure the sensitivity of hearing
  • audiometry - measuring sensitivity of hearing
  • audit - a methodical examination or review of a condition or situation
  • auditory - of or relating to the process of hearing
  • augmentation - the act of augmenting
  • august - profoundly honored
  • augusta - a city in eastern Georgia north-northwest of Savannah; noted for golf tournaments
  • augustinian - a Roman Catholic friar or monk belonging to one of the Augustinian monastic orders
  • augustus - Roman statesman who established the Roman Empire and became emperor in 27 BC; defeated Mark Antony and Cleopatra in 31 BC at Actium (63 BC - AD 14)
  • aura - an indication of radiant light drawn around the head of a saint
  • aural - relating to or characterized by an aura
  • auricle - the externally visible cartilaginous structure of the external ear
  • auricular - pertaining to an auricle of the heart
  • auriscope - medical instrument consisting of a magnifying lens and light; used for examining the external ear (the auditory meatus and especially the tympanic membrane)
  • auscultation - listening to sounds within the body (usually with a stethoscope)
  • auscultatory - of or relating to auscultation
  • australia - a nation occupying the whole of the Australian continent; aboriginal tribes are thought to have migrated from southeastern Asia 20,000 years ago; first Europeans were British convicts sent there as a penal colony
  • australian - of or relating to or characteristic of Australia or its inhabitants
  • austria - a mountainous republic in central Europe; under the Habsburgs (1278-1918) Austria maintained control of the Holy Roman Empire and was a leader in European politics until the 19th century
  • austrian - of or relating to Austria or its people or culture
  • author - someone who originates or causes or initiates something
  • authorities - the organization that is the governing authority of a political unit
  • authority - official permission or approval
  • autism - (psychiatry) an abnormal absorption with the self; marked by communication disorders and short attention span and inability to treat others as people
  • autistic - characteristic of or affected with autism
  • auto - a motor vehicle with four wheels; usually propelled by an internal combustion engine
  • autoantibody - an antibody acting against tissues of the organism that produces it
  • autoclave - a device for heating substances above their boiling point; used to manufacture chemicals or to sterilize surgical instruments
  • autogenic - originating within the body
  • autogenous - originating within the body
  • autograft - tissue that is taken from one site and grafted to another site on the same person
  • autoimmune - of or relating to the immune response of the body against substance normally present in the body
  • autoimmunity - production of antibodies against the tissues of your own body; produces autoimmune disease or hypersensitivity reactions
  • autologous - derived from organisms of the selfsame individual
  • autolysis - lysis of plant or animal tissue by an internal process
  • automatic - operating with minimal human intervention; independent of external control
  • automatically - in a reflex manner
  • automatism - any reaction that occurs automatically without conscious thought or reflection (especially the undirected behavior seen in psychomotor epilepsy)
  • autonomic - relating to or controlled by the autonomic nervous system
  • autonomy - immunity from arbitrary exercise of authority: political independence
  • autoplasty - surgical repair by using tissue from another part of the patient's own body
  • autopsy - an examination and dissection of a dead body to determine cause of death or the changes produced by disease
  • autosomal - of or relating to an autosome
  • autosome - any chromosome that is not a sex chromosome; appear in pairs in body cells but as single chromosomes in spermatozoa
  • auxiliary - functioning in a subsidiary or supporting capacity
  • av - the eleventh month of the civil year; the fifth month of the ecclesiastical year in the Jewish calendar (in July and August)
  • available - obtainable or accessible and ready for use or service
  • avascular - without blood vessels
  • average - lacking special distinction, rank, or status; commonly encountered
  • aversion - the act of turning yourself (or your gaze) away
  • aviation - the art of operating aircraft
  • avitaminosis - any of several diseases caused by deficiency of one or more vitamins
  • avoid - stay clear from; keep away from; keep out of the way of someone or something
  • avulse - separate by avulsion
  • avulsion - a forcible tearing or surgical separation of one body part from another
  • awake - not in a state of sleep; completely conscious
  • awakened - (somewhat formal) having been waked up
  • aware - (sometimes followed by `of') having or showing knowledge or understanding or realization or perception
  • awareness - having knowledge of
  • away - (of a baseball pitch) on the far side of home plate from the batter
  • awkward - not at ease socially; unsure and constrained in manner
  • awkwardly - in an awkward manner
  • axial - situated on or along or in the direction of an axis
  • axilla - the hollow under the arm where it is joined to the shoulder
  • axillary - of or relating to the armpit
  • axis - the center around which something rotates
  • axolemma - outer membrane covering an axon
  • axon - long nerve fiber that conducts away from the cell body of the neuron
  • azathioprine - an immunosuppressive drug (trade name Imuran) used to prevent rejection of a transplanted organ
  • azotaemia - accumulation in the blood of nitrogenous waste products (urea) that are usually excreted in the urine
  • azoturia - excess of urea in the urine
  • azt - an antiviral drug (trade name Retrovir) used in the treatment of AIDS; adverse side effects include liver damage and suppression of the bone marrow
  • azygous - occurring singly; not one of a pair

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

B

  • ba - a bachelor's degree in arts and sciences
  • babinski - extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front; normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons
  • baby - a project of personal concern to someone
  • bachelor - a man who has never been married
  • bacillary - formed like a bacillus
  • bacillus - aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
  • back - located at or near the back of an animal
  • backache - an ache localized in the back
  • backbone - the part of a network that connects other networks together
  • background - (computer science) the area of the screen in graphical user interfaces against which icons and windows appear
  • backside - the fleshy part of the human body that you sit on
  • backward - directed or facing toward the back or rear
  • backwards - at or to or toward the back or rear
  • bacteria - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered plants
  • bacterial - relating to or caused by bacteria
  • bactericidal - preventing infection by inhibiting the growth or action of microorganisms
  • bactericide - any chemical agent that destroys bacteria
  • bacteriological - of or relating to bacteriology
  • bacteriologist - a biologist who studies bacteria
  • bacteriology - the branch of medical science that studies bacteria in relation to disease
  • bacteriolysis - dissolution or destruction of bacteria
  • bacteriolytic - of or relating to or causing bacteriolysis
  • bacteriophage - a virus that is parasitic in bacteria
  • bacteriostasis - inhibition of the growth of bacteria
  • bacteriostatic - of or relating to or causing bacteriostasis
  • bacterium - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered plants
  • bad - feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')
  • badly - with unusual distress or resentment or regret or emotional display
  • bag - a flexible container with a single opening
  • baghdad - capital and largest city of Iraq; located on the Tigris River
  • baker - someone who bakes bread or cake
  • balance - a scale for weighing; depends on pull of gravity
  • balanced - total debits and credits are equal
  • balancing - getting two things to correspond
  • balanitis - inflammation of the head of the penis
  • balanoposthitis - inflammation of both the head of the penis and the foreskin
  • balanus - type genus of the family Balanidae
  • bald - lacking hair on all or most of the scalp
  • baldness - the condition of having no hair on the top of the head
  • balkan - of or denoting or relating to the Balkan countries or their inhabitants or the Balkan peninsula or the Balkan Mountains
  • ball - a pitch that is not in the strike zone
  • balloon - large tough nonrigid bag filled with gas or heated air
  • ballottement - a palpatory technique for feeling a floating object in the body (especially for determining the position of a fetus by feeling the rebound of the fetus after a quick digital tap on the wall of the uterus)
  • balsam - an ointment containing a fragrant resin
  • baltimore - the largest city in Maryland; a major seaport and industrial center
  • ban - an official prohibition or edict against something
  • band - a thin flat strip of flexible material that is worn around the body or one of the limbs (especially to decorate the body)
  • bandage - a piece of soft material that covers and protects an injured part of the body
  • bandaged - covered or wrapped with a bandage
  • bandaging - the act of applying a bandage
  • bank - a flight maneuver; aircraft tips laterally about its longitudinal axis (especially in turning)
  • banking - transacting business with a bank; depositing or withdrawing funds or requesting a loan etc.
  • banned - forbidden by law
  • bar - a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon
  • barbados - easternmost of the West Indies about 300 miles north of Venezuela
  • barbed - having or covered with protective barbs or quills or spines or thorns or setae etc.
  • barbital - a barbiturate used as a hypnotic
  • barbitone - a barbiturate used as a hypnotic
  • barbiturate - organic compound having powerful soporific effect; overdose can be fatal
  • bare - lacking in amplitude or quantity
  • barium - a soft silvery metallic element of the alkali earth group; found in barite
  • bark - a sailing ship with 3 (or more) masts
  • baron - a very wealthy or powerful businessman
  • baroreceptor - a sensory receptor that responds to pressure
  • barrel - a cylindrical container that holds liquids
  • barrier - a structure or object that impedes free movement
  • bars - gymnastic apparatus consisting of two parallel wooden rods supported on uprights
  • bartholin - Danish physician who discovered Bartholin's gland (1585-1629)
  • basal - of primary importance
  • base - debased; not genuine
  • based - having a base of operations (often used as a combining form)
  • basement - the lowermost portion of a structure partly or wholly below ground level; often used for storage
  • basic - of or denoting or of the nature of or containing a base
  • basilar - of or relating to or located at the base
  • basin - a bowl-shaped vessel; usually used for holding food or liquids
  • basis - the fundamental assumptions from which something is begun or developed or calculated or explained
  • basle - a city in northwestern Switzerland
  • basophil - a leukocyte with basophilic granules easily stained by basic stains
  • basophilia - the tendency of cells to stain with basic dyes
  • basophilic - staining readily with basic dyes
  • batch - a collection of things or persons to be handled together
  • bath - you soak and wash your body in a bathtub
  • bathe - the act of swimming
  • bathing - immersing the body in water or sunshine
  • bathroom - a room (as in a residence) containing a bathtub or shower and usually a washbasin and toilet
  • battered - exhibiting symptoms resulting from repeated physical and emotional injury
  • battledore - an ancient racket game
  • bauxite - a clay-like mineral; the chief ore of aluminum; composed of aluminum oxides and aluminum hydroxides; used as an abrasive and catalyst
  • bavarian - of or relating to or characteristic of Bavaria or its people
  • bayard - French soldier said to be fearless and chivalrous (1473-1524)
  • bd - a bachelor's degree in religion
  • be - a light strong brittle grey toxic bivalent metallic element
  • beach - an area of sand sloping down to the water of a sea or lake
  • beak - horny projecting mouth of a bird
  • beam - long thick piece of wood or metal or concrete, etc., used in construction
  • bean - any of various edible seeds of plants of the family Leguminosae used for food
  • bear - massive plantigrade carnivorous or omnivorous mammals with long shaggy coats and strong claws
  • beard - hairy growth on or near the face of certain mammals
  • bearer - a messenger who bears or presents
  • bearing - (of a structural member) withstanding a weight or strain
  • beat - very tired
  • beaten - much trodden and worn smooth or bare
  • beating - expanding and contracting rhythmically as to the beating of the heart
  • beats - a United States youth subculture of the 1950s; rejected possessions or regular work or traditional dress; for communal living and psychedelic drugs and anarchism; favored modern forms of jazz (e.g., bebop)
  • beck - a beckoning gesture
  • become - enter or assume a certain state or condition
  • becoming - displaying or setting off to best advantage
  • becquerel - French physicist who discovered that rays emitted by uranium salts affect photographic plates (1852-1908)
  • bed - a piece of furniture that provides a place to sleep
  • bedbug - bug of temperate regions that infests especially beds and feeds on human blood
  • bedclothes - coverings that are used on a bed
  • bedding - coverings that are used on a bed
  • bedpan - a shallow vessel used by a bedridden patient for defecation and urination
  • bedridden - confined to bed (by illness)
  • bedside - space by the side of a bed (especially the bed of a sick or dying person)
  • bedsore - a chronic ulcer of the skin caused by prolonged pressure on it (as in bedridden patients)
  • bee - any of numerous hairy-bodied insects including social and solitary species
  • beer - a general name for alcoholic beverages made by fermenting a cereal (or mixture of cereals) flavored with hops
  • beet - round red root vegetable
  • before - earlier in time; previously
  • begin - Israeli statesman (born in Russia) who (as prime minister of Israel) negotiated a peace treaty with Anwar Sadat (then the president of Egypt) (1913-1992)
  • beginning - serving to begin
  • behalf - as the agent of or on someone's part (usually expressed as "on behalf of" rather than "in behalf of")
  • behave - behave in a certain manner
  • behavior - manner of acting or controlling yourself
  • behavioral - of or relating to behavior
  • behaviour - manner of acting or controlling yourself
  • behavioural - of or relating to behavior
  • behaviourism - an approach to psychology that emphasizes observable measurable behavior
  • behaviourist - of or relating to behaviorism
  • behind - having the lower score or lagging position in a contest
  • being - the state or fact of existing
  • bel - Babylonian god of the earth; one of the supreme triad including Anu and Ea; earlier identified with En-lil
  • belch - a reflex that expels wind noisily from the stomach through the mouth
  • belching - the forceful expulsion of something from inside
  • belie - represent falsely
  • belief - any cognitive content held as true
  • believe - accept as true; take to be true
  • bell - a hollow device made of metal that makes a ringing sound when struck
  • belladonna - an alkaloidal extract or tincture of the poisonous belladonna plant that is used medicinally
  • belle - a young woman who is the most charming and beautiful of several rivals
  • belly - the underpart of the body of certain vertebrates such as snakes or fish
  • bellyache - an ache localized in the stomach or abdominal region
  • belong - be owned by; be in the possession of
  • belonging - happiness felt in a secure relationship
  • below - at a later place
  • belt - a band to tie or buckle around the body (usually at the waist)
  • ben - a mountain or tall hill
  • bend - curved segment (of a road or river or railroad track etc.)
  • bending - not remaining rigid or straight
  • bends - pain resulting from rapid change in pressure
  • beneath - in or to a place that is lower
  • benedict - Italian monk who founded the Benedictine order about 540 (480-547)
  • beneficial - promoting or enhancing well-being
  • benefit - something that aids or promotes well-being
  • benign - pleasant and beneficial in nature or influence
  • benjamin - (Old Testament) the youngest and best-loved son of Jacob and Rachel and one of the twelve forebears of the tribes of Israel
  • bennett - United States aviator who (with Richard E. Byrd) piloted the first flight over the North Pole (1890-1928)
  • bent - of metal e.g.
  • benton - United States legislator who opposed the use of paper currency (1782-1858)
  • benzene - a colorless liquid hydrocarbon; highly inflammable; carcinogenic; the simplest of the aromatic compounds
  • benzoate - any salt or ester of benzoic acid
  • benzocaine - a white crystalline ester used as a local anesthetic
  • benzodiazepine - any of several similar lipophilic amines used as tranquilizers or sedatives or hypnotics or muscle relaxants; chronic use can lead to dependency
  • benzoin - used in some classifications for the American spicebush and certain other plants often included in the genus Lindera
  • benzyl - the univalent radical derived from toluene
  • benzylpenicillin - the penicillin that constitutes the principal component of many commercial antibiotics
  • bereavement - state of sorrow over the death or departure of a loved one
  • beriberi - avitaminosis caused by lack of thiamine (vitamin B1)
  • berlin - a limousine with a glass partition between the front and back seats
  • bern - the capital of Switzerland; located in western Switzerland
  • bernard - French physiologist noted for research on secretions of the alimentary canal and the glycogenic function of the liver (1813-1878)
  • beryllium - a light strong brittle grey toxic bivalent metallic element
  • best - (superlative of `good') having the most positive qualities
  • bet - the act of gambling
  • beta - preliminary or testing stage of a software or hardware product
  • better - (comparative and superlative of `well') wiser or more advantageous and hence advisable
  • between - in between
  • beyond - in addition
  • bi - a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals
  • bias - slanting diagonally across the grain of a fabric
  • bicarbonate - a salt of carbonic acid (containing the anion HCO3) in which one hydrogen atom has been replaced; an acid carbonate
  • biceps - any skeletal muscle having two origins (but especially the muscle that flexes the forearm)
  • bicipital - having two heads or points of origin as a biceps
  • biconcave - concave on both sides
  • biconvex - convex on both sides; shaped like a lentil
  • bicornuate - having two horns or horn-shaped parts
  • bicuspid - having two cusps or points (especially a molar tooth)
  • bifid - divided into two lobes
  • bifocal - having two foci
  • bifocals - eyeglasses having two focal lengths
  • bifurcate - resembling a fork; divided or separated into two branches
  • bifurcation - the act of splitting into two branches
  • big - in an advanced stage of pregnancy
  • bigger - large or big relative to something else
  • bilateral - having two sides or parts
  • bile - a digestive juice secreted by the liver and stored in the gallbladder; aids in the digestion of fats
  • bilharzia - an infestation with or a resulting infection caused by a parasite of the genus Schistosoma; common in the tropics and Far East; symptoms depend on the part of the body infected
  • bilharziasis - an infestation with or a resulting infection caused by a parasite of the genus Schistosoma; common in the tropics and Far East; symptoms depend on the part of the body infected
  • biliary - relating to the bile ducts or the gallbladder
  • bilious - suffering from or suggesting a liver disorder or gastric distress
  • biliousness - gastric distress caused by a disorder of the liver or gall bladder
  • bilirubin - an orange-yellow pigment in the bile that forms as a product of hemoglobin; excess amounts in the blood produce the yellow appearance observed in jaundice
  • billings - the largest city in Montana; located in southern Montana on the Yellowstone river
  • billion - denoting a quantity consisting of one thousand million items or units in the United States
  • bilobate - having two lobes
  • bimanual - requiring two hands or designed for two people
  • binary - consisting of two (units or components or elements or terms) or based on two
  • binaural - relating to or having or hearing with two ears
  • bind - something that hinders as if with bonds
  • binder - something used to tie or bind
  • binding - causing constipation
  • binet - French psychologist remembered for his studies of the intellectual development of children (1857-1911)
  • binocular - relating to both eyes
  • bioassay - appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard
  • biochemical - of or relating to biochemistry; involving chemical processes in living organisms
  • biochemist - someone with special training in biochemistry
  • biochemistry - the organic chemistry of compounds and processes occuring in organisms; the effort to understand biology within the context of chemistry
  • biodegradable - capable of being decomposed by e.g. bacteria
  • bioengineering - the branch of engineering science in which biological science is used to study the relation between workers and their environments
  • bioethics - the branch of ethics that studies moral values in the biomedical sciences
  • biofeedback - a training program in which a person is given information about physiological processes (heart rate or blood pressure) that is not normally available with the goal of gaining conscious control of them
  • biogenesis - the production of living organisms from other living organisms
  • biohazard - hazard to humans or the environment resulting from biological agents or conditions
  • biological - of parents and children; related by blood
  • biologically - with respect to biology
  • biologist - (biology) a scientist who studies living organisms
  • biology - the science that studies living organisms
  • biomedical - relating to the activities and applications of science to clinical medicine
  • biomedicine - the branch of medical science that studies the ability of organisms to withstand environmental stress (as in space travel)
  • biometry - a branch of biology that studies biological phenomena and observations by means of statistical analysis
  • bionic - having particular physiological functions augmented or replaced by electronic or electromechanical components
  • bionics - application of biological principals to the study and design of engineering systems (especially electronic systems)
  • biopsy - examination of tissues or liquids from the living body to determine the existence or cause of a disease
  • biostatistics - a branch of biology that studies biological phenomena and observations by means of statistical analysis
  • biotechnology - the branch of engineering science in which biological science is used to study the relation between workers and their environments
  • biotin - a B vitamin that aids in body growth
  • biparous - producing two offspring at a time
  • bipolar - having two poles
  • bird - warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
  • birmingham - a city in central England; 2nd largest English city and an important industrial and transportation center
  • birth - the event of being born
  • birthday - an anniversary of the day on which a person was born (or the celebration of it)
  • birthing - the process of giving birth
  • birthmark - a blemish on the skin that is formed before birth
  • bisexual - sexually attracted to both sexes
  • bisexuality - sexual activity with both men and women
  • bismuth - a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals
  • bit - the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press
  • bite - a portion removed from the whole
  • biting - causing a sharply painful or stinging sensation; used especially of cold
  • bitter - proceeding from or exhibiting great hostility or animosity
  • bivalve - used of mollusks having two shells (as clams etc.)
  • bk - a radioactive transuranic element; discovered by bombarding americium with helium
  • black - marked by anger or resentment or hostility
  • blackhead - a black-tipped plug clogging a pore of the skin
  • blackout - a momentary loss of consciousness
  • blackwater - any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells
  • bladder - a bag that fills with air
  • blade - the flat part of a tool or weapon that (usually) has a cutting edge
  • blame - expletives used informally as intensifiers
  • blanch - cook (vegetables) briefly
  • bland - lacking stimulating characteristics; uninteresting
  • blank - void of expression
  • blanket - broad in scope or content
  • blast - a very long fly ball
  • blastocele - the fluid-filled cavity inside a blastula
  • blastocoele - the fluid-filled cavity inside a blastula
  • blastocyst - the blastula of mammals
  • blastomyces - genus of pathogenic yeastlike fungi
  • blastomycosis - any of several infections of the skin or mucous membrane caused by Blastomyces
  • blastula - early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs
  • bleach - the act of whitening something by bleaching it (exposing it to sunlight or using a chemical bleaching agent)
  • bleb - (pathology) an elevation of the skin filled with serous fluid
  • bleed - draw blood
  • bleeder - someone who has hemophilia and is subject to uncontrollable bleeding
  • bleeding - flow of blood from a ruptured blood vessels
  • blepharitis - inflammation of the eyelids characterized by redness and swelling and dried crusts
  • blepharospasm - spasm of the eyelid muscle resulting in closure of the eye
  • blind - unable or unwilling to perceive or understand
  • blinded - deprived of sight
  • blindness - the state of being blind or lacking sight
  • blink - a reflex that closes and opens the eyes rapidly
  • blister - (pathology) an elevation of the skin filled with serous fluid
  • blistered - (of skin) having blisters (swellings containing watery fluid) caused by burning or irritation
  • blistering - very fast; capable of quick response and great speed
  • bloated - abnormally distended especially by fluids or gas
  • block - a solid piece of something (usually having flat rectangular sides)
  • blockage - the act of blocking
  • blocked - completely obstructed or closed off
  • blocker - a class of drugs that inhibit (block) some biological process
  • blocking - the act of obstructing or deflecting someone's movements
  • blood - temperament or disposition
  • bloodshot - (of an eye) reddened as a result of locally congested blood vessels; inflamed
  • bloodstained - covered with blood
  • bloodstream - the blood flowing through the circulatory system
  • bloody - having or covered with or accompanied by blood
  • bloomsbury - a city district of central London laid out in garden squares
  • blot - an act that brings discredit to the person who does it
  • blotch - an irregularly shaped spot
  • blow - forceful exhalation through the nose or mouth
  • blowing - processing that involves blowing a gas
  • blue - causing dejection
  • blueness - blue color or pigment; resembling the color of the clear sky in the daytime
  • blues - a type of folksong that originated among Black Americans at the beginning of the 20th century; has a melancholy sound from repeated use of blue notes
  • blunt - devoid of any qualifications or disguise or adornment
  • blurred - unclear in form or expression
  • blush - sudden reddening of the face (as from embarrassment or guilt or shame or modesty)
  • bm - a euphemism for defecation
  • bmr - the rate at which heat is produced by an individual in a resting state
  • board - a flat piece of material designed for a special purpose
  • boards - the boarding that surrounds an ice hockey rink
  • boat - a small vessel for travel on water
  • bodily - having or relating to a physical material body
  • body - the external structure of a vehicle
  • boil - a painful sore with a hard core filled with pus
  • boiled - cooked in hot water
  • boiling - extremely
  • bologna - large smooth-textured smoked sausage of beef and veal and pork
  • bolus - a large pill; used especially in veterinary medicine
  • bond - held in slavery
  • bonded - secured by written agreement
  • bonding - fastening firmly together
  • bone - consisting of or made up of bone
  • bones - a percussion instrument consisting of a pair of hollow pieces of wood or bone (usually held between the thumb and fingers) that are made to click together (as by Spanish dancers) in rhythm with the dance
  • bonesetter - someone (not necessarily a licensed physician) who sets broken bones
  • bonn - a city in western Germany on the Rhine River; was the capital of West Germany between 1949 and 1989
  • bonney - United States outlaw who was said to have killed 21 men (1859-1881)
  • bony - having bones especially many or prominent bones
  • book - physical objects consisting of a number of pages bound together
  • booking - the act of reserving (a place or passage) or engaging the services of (a person or group)
  • booster - an additional dose that makes sure the first dose was effective
  • boot - a form of foot torture in which the feet are encased in iron and slowly crushed
  • boracic - of or relating to or derived from or containing boron
  • borax - an ore of boron consisting of hydrated sodium borate; used as a flux or cleansing agent
  • border - a strip forming the outer edge of something
  • borderline - of questionable or minimal quality
  • boredom - the feeling of being bored by something tedious
  • boric - of or relating to or derived from or containing boron
  • born - brought into existence
  • borrelia - cause of e.g. European and African relapsing fever
  • boston - state capital and largest city of Massachusetts; a major center for banking and financial services
  • botany - the branch of biology that studies plants
  • both - (used with count nouns) two considered together; the two
  • bottle - a glass or plastic vessel used for storing drinks or other liquids; typically cylindrical without handles and with a narrow neck that can be plugged or capped
  • bottom - the lowest rank
  • botulinum - anaerobic bacterium producing botulin the toxin that causes botulism
  • botulism - food poisoning from ingesting botulin; not infectious; affects the CNS; can be fatal if not treated promptly
  • bound - confined by bonds
  • bout - a contest or fight (especially between boxers or wrestlers)
  • bovine - dull and slow-moving and stolid; like an ox
  • bow - a stroke with a curved piece of wood with taut horsehair strands that is used in playing stringed instruments
  • bowel - the part of the alimentary canal between the stomach and the anus
  • bowels - the center of the Earth
  • bowl - a dish that is round and open at the top for serving foods
  • bowman - a person who is expert in the use of a bow and arrow
  • box - a blow with the hand (usually on the ear)
  • boxer - a breed of stocky medium-sized short-haired dog with a brindled coat and square-jawed muzzle developed in Germany
  • boxing - fighting with the fists
  • boy - (ethnic slur) offensive and disparaging term for Black man
  • bph - enlarged prostate; appears to be part of the natural aging process
  • br - a Marxist-Leninist terrorist organization that arose out of a student protest movement in the late 1960s; wants to separate Italy from NATO and advocates violence in the service of class warfare and revolution; mostly inactive since 1989
  • bra - an undergarment worn by women to support their breasts
  • brace - a structural member used to stiffen a framework
  • bracelet - jewelry worn around the wrist for decoration
  • braces - an appliance that corrects dental irregularities
  • brachial - of or relating to an arm
  • brachium - (biology) a branching or armlike part of an animal
  • brachycephaly - the quality of being brachycephalic
  • bradford - United States printer (born in England) whose press produced the first American prayer book and the New York City's first newspaper (1663-1752)
  • brady - United States financier noted for his love of diamonds and his extravagant lifestyle (1856-1917)
  • bradycardia - abnormally slow heartbeat
  • braille - a point system of writing in which patterns of raised dots represent letters and numerals
  • brain - that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
  • brainstem - the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
  • bran - food prepared from the husks of cereal grains
  • branch - an administrative division of some larger or more complex organization
  • branched - having branches
  • branchia - respiratory organ of aquatic animals that breathe oxygen dissolved in water
  • branchial - of or relating to gills (or to parts of the body derived from embryonic gills)
  • branching - resembling the branches of a tree
  • brand - a recognizable kind
  • braun - United States rocket engineer (born in Germany where he designed a missile used against England); he led the United States Army team that put the first American satellite into space (1912-1977)
  • brazilian - of or relating to or characteristic of Brazil or the people of Brazil
  • bread - food made from dough of flour or meal and usually raised with yeast or baking powder and then baked
  • break - an escape from jail
  • breakdown - an analysis into mutually exclusive categories
  • breaker - a quarry worker who splits off blocks of stone
  • breakfast - the first meal of the day (usually in the morning)
  • breaking - (of waves) curling over and crashing into surf or spray
  • breast - the front part of the trunk from the neck to the abdomen
  • breastbone - the flat bone that articulates with the clavicles and the first seven pairs of ribs
  • breath - the process of taking in and expelling air during breathing
  • breathe - draw air into, and expel out of, the lungs
  • breathed - uttered without voice
  • breathing - passing or able to pass air in and out of the lungs normally; sometimes used in combination
  • breathless - appearing dead; not breathing or having no perceptible pulse
  • breathlessness - a dyspneic condition
  • breech - opening in the rear of the barrel of a gun where bullets can be loaded
  • breed - a lineage or race of people
  • bregma - the craniometric point at the junction of the sagittal and coronal sutures at the top of the cranium
  • breslau - a city in southwestern Poland on the Oder
  • brest - a port city in northwestern France (in Brittany); the chief naval station of France
  • breuer - United States architect (born in Hungary) who was associated with the Bauhaus in the 1920's (1902-1981)
  • bridge - any of various card games based on whist for four players
  • bridges - United States labor leader who organized the longshoremen (1901-1990)
  • brief - concise and succinct
  • briefly - for a short time
  • brigade - army unit smaller than a division
  • bright - full or promise
  • brightly - with brightness
  • brim - a circular projection that sticks outward from the crown of a hat
  • bring - bring into a different state
  • bringing - the act of delivering or distributing something (as goods or mail)
  • bristol - an industrial city and port in southwestern England near the mouth of the River Avon
  • britain - a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland
  • british - of or relating to or characteristic of Great Britain or its people or culture
  • brittle - having little elasticity; hence easily cracked or fractured or snapped
  • brittleness - firm but easily broken
  • brno - an industrial city in Moravia in Czech Republic southeast of Prague
  • broad - showing or characterized by broad-mindedness
  • broca - French anthropologist who studied the craniums and brains of different races of people; remembered for his discovery that articulate speech depends on an area of the brain now known as Broca's area (1824-1880)
  • broke - lacking funds
  • broken - physically and forcibly separated into pieces or cracked or split
  • bromide - any of the salts of hydrobromic acid; formerly used as a sedative but now generally replaced by safer drugs
  • bromine - a nonmetallic largely pentavalent heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water
  • bronchial - relating to or associated with the bronchi
  • bronchiolar - of or relating to or involving bronchioles
  • bronchiole - any of the smallest bronchial ducts; ending in alveoli
  • bronchiolitis - inflammation of the membranes lining the bronchioles
  • bronchitic - suffering from or prone to bronchitis
  • bronchitis - inflammation of the membranes lining the bronchial tubes
  • broncho - an unbroken or imperfectly broken mustang
  • bronchodilator - a drug that relaxes and dilates the bronchial passageways and improves the passages of air into the lungs
  • bronchopneumonia - pneumonia characterized by acute inflammation of the walls of the bronchioles
  • bronchoscope - a slender tubular instrument used to examine the bronchial tubes
  • bronchospasm - a spasm of the bronchi that makes exhalation difficult and noisy; associated with asthma and bronchitis
  • bronchus - either of the two main branches of the trachea
  • bronze - of the color of bronze
  • brother - a male with the same parents as someone else
  • brow - the part of the face above the eyes
  • brown - (of skin) deeply suntanned
  • browne - United States writer of humorous tales of an itinerant showman (1834-1867)
  • brownish - of a color similar to that of wood or earth
  • bruce - King of Scotland from 1306 to 1329; defeated the English army under Edward II at Bannockburn and gained recognition of Scottish independence (1274-1329)
  • brucella - an aerobic Gram-negative coccobacillus that causes brucellosis; can be used as a bioweapon
  • brucellosis - infectious bacterial disease of human beings transmitted by contact with infected animals or infected meat or milk products; characterized by fever and headache
  • bruise - an injury that doesn't break the skin but results in some discoloration
  • bruised - injured without breaking the skin
  • bruising - brutally forceful and compelling
  • bruit - tell or spread rumors
  • bruno - Italian philosopher who used Copernican principles to develop a pantheistic monistic philosophy; condemned for heresy by the Inquisition and burned at the stake (1548-1600)
  • brush - contact with something dangerous or undesirable
  • bruxism - involuntarily or unconsciously clenching or grinding the teeth, typically during sleep
  • bs - a bachelor's degree in science
  • bse - a fatal disease of cattle that affects the central nervous system; causes staggering and agitation
  • bubble - a dome-shaped covering made of transparent glass or plastic
  • bubo - a genus of Strigidae
  • bubonic - of or evidencing buboes
  • buccal - toward the inside of the cheek
  • buck - mature male of various mammals (especially deer or antelope)
  • bud - a partially opened flower
  • budget - a summary of intended expenditures along with proposals for how to meet them
  • buffer - a cushion-like device that reduces shock due to contact
  • bug - general term for any insect or similar creeping or crawling invertebrate
  • build - constitution of the human body
  • building - a structure that has a roof and walls and stands more or less permanently in one place
  • buildup - the act of building up an accumulation
  • built - (used of soaps or cleaning agents) having a substance (an abrasive or filler) added to increase effectiveness
  • bulb - a rounded part of a cylindrical instrument (usually at one end)
  • bulbar - involving the medulla oblongata
  • bulbous - curving outward
  • bulge - something that bulges out or is protuberant or projects from its surroundings
  • bulging - curving or bulging outward
  • bulimia - pathologically insatiable hunger (especially when caused by brain lesions)
  • bulimic - suffering from bulimia
  • bulla - the round leaden seal affixed to a papal bull
  • bullet - a projectile that is fired from a gun
  • bump - a lump on the body caused by a blow
  • bumper - extraordinarily abundant
  • bunch - any collection in its entirety
  • bundle - a package of several things tied together for carrying or storing
  • bunion - a painful swelling of the bursa of the first joint of the big toe
  • burial - the ritual placing of a corpse in a grave
  • burn - damage inflicted by fire
  • burned - ruined by overcooking
  • burning - consuming fuel; used in combination
  • burns - celebrated Scottish poet (1759-1796)
  • burnt - ruined by overcooking
  • burp - a reflex that expels wind noisily from the stomach through the mouth
  • burr - rough projection left on a workpiece after drilling or cutting
  • bursa - a small fluid-filled sac located between movable parts of the body especially at joints
  • bursitis - inflammation of a bursa; frequently in the shoulder
  • burst - suddenly and violently broken open especially from internal pressure (`busted' is an informal term for `burst')
  • bus - a vehicle carrying many passengers; used for public transport
  • business - incidental activity performed by an actor for dramatic effect
  • businessmen - the body of individuals who manage businesses
  • but - and nothing more
  • butter - an edible emulsion of fat globules made by churning milk or cream; for cooking and table use
  • buttock - either of the two large fleshy masses of muscular tissue that form the human rump
  • buttocks - the fleshy part of the human body that you sit on
  • button - a round fastener sewn to shirts and coats etc to fit through buttonholes
  • buttonhole - a hole through which buttons are pushed
  • buy - an advantageous purchase
  • buzzing - noisy like the sound of a bee
  • by - so as to pass a given point
  • bypass - a road that takes traffic around the edge of a town

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

C

  • ca - a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes
  • cab - a car driven by a person whose job is to take passengers where they want to go in exchange for money
  • cabbage - any of various types of cabbage
  • cabg - open-heart surgery in which the rib cage is opened and a section of a blood vessel is grafted from the aorta to the coronary artery to bypass the blocked section of the coronary artery and improve the blood supply to the heart
  • cabinet - a piece of furniture resembling a cupboard with doors and shelves and drawers; for storage or display
  • cachet - a seal on a letter
  • cachexia - any general reduction in vitality and strength of body and mind resulting from a debilitating chronic disease
  • cadaver - the dead body of a human being
  • cadaveric - of or relating to a cadaver or corpse
  • cadaverous - of or relating to a cadaver or corpse
  • caecal - of or like a cecum
  • caecum - the cavity in which the large intestine begins and into which the ileum opens
  • caesar - conqueror of Gaul and master of Italy (100-44 BC)
  • caesarean - of or relating to or in the manner of Julius Caesar
  • caesium - a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
  • caffeine - a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
  • cage - an enclosure made or wire or metal bars in which birds or animals can be kept
  • caisson - large watertight chamber used for construction under water
  • calamine - a white mineral; a common ore of zinc
  • calcaneal - relating to the heel bone or heel
  • calcaneus - the largest tarsal bone; forms the human heel
  • calcareous - composed of or containing or resembling calcium carbonate or calcite or chalk
  • calcification - a process that impregnates something with calcium (or calcium salts)
  • calcitonin - thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone
  • calcium - a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
  • calculate - make a mathematical calculation or computation
  • calculated - carefully thought out in advance
  • calculating - used of persons
  • calculation - the procedure of calculating; determining something by mathematical or logical methods
  • calculus - the branch of mathematics that is concerned with limits and with the differentiation and integration of functions
  • caldwell - United States author remembered for novels about poverty and degeneration (1903-1987)
  • calf - young of domestic cattle
  • caliber - a degree or grade of excellence or worth
  • calibrate - make fine adjustments or divide into marked intervals for optimal measuring
  • calibre - a degree or grade of excellence or worth
  • california - a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes
  • caliper - an instrument for measuring the distance between two points (often used in the plural)
  • call - (sports) the decision made by an umpire or referee
  • called - known or spoken of as
  • calling - the particular occupation for which you are trained
  • calliper - an instrument for measuring the distance between two points (often used in the plural)
  • callisthenics - light exercises designed to promote general fitness
  • callosity - an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
  • callus - (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid
  • calm - (of weather) free from storm or wind
  • calming - causing to become tranquil
  • calomel - a tasteless colorless powder used medicinally as a cathartic
  • caloric - of or relating to calories in food
  • calorie - unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure
  • calorific - heat-generating
  • calvaria - the dome of the skull
  • calyx - (botany) the whorl of sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud; usually green
  • cam - a rotating disk shaped to convert circular into linear motion
  • cambridge - a city in eastern England on the River Cam; site of Cambridge University
  • camera - equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other)
  • campaign - an overland journey by hunters (especially in Africa)
  • camphor - a resin obtained from the camphor tree; used in making celluloid and liniment
  • camphorated - impregnated with camphor
  • can - airtight sealed metal container for food or drink or paint etc.
  • canada - a nation in northern North America; the French were the first Europeans to settle in mainland Canada
  • canadian - of or relating to Canada or its people
  • canal - long and narrow strip of water made for boats or for irrigation
  • canaliculus - a small canal or duct as in some bones and parts of plants
  • cancelled - (of events) no longer planned or scheduled
  • cancellous - having an open or latticed or porous structure
  • cancer - type genus of the family Cancridae
  • cancerous - like a cancer; an evil that grows and spreads
  • candida - any of the yeastlike imperfect fungi of the genus Candida
  • candidate - someone who is considered for something (for an office or prize or honor etc.)
  • candidiasis - an infection caused by fungi of the genus Monilia or Candida (especially Candida albicans)
  • cane - a stiff switch used to hit students as punishment
  • canine - of or relating to or characteristic of members of the family Canidae
  • canker - an ulceration (especially of the lips or lining of the mouth)
  • cannabis - the most commonly used illicit drug; considered a soft drug, it consists of the dried leaves of the hemp plant; smoked or chewed for euphoric effect
  • canned - sealed in a can or jar
  • cannula - a small flexible tube inserted into a body cavity for draining off fluid or introducing medication
  • cannulate - introduce a cannula or tube into
  • cant - insincere talk about religion or morals
  • canthus - either of the corners of the eye where the upper and lower eyelids meet
  • canulate - introduce a cannula or tube into
  • canvas - a heavy, closely woven fabric (used for clothing or chairs or sails or tents)
  • cap - a tight-fitting headdress
  • capable - (usually followed by `of') having capacity or ability
  • capacity - a specified function
  • capillary - long and slender with a very small internal diameter
  • capital - uppercase
  • capitate - being abruptly enlarged and globose at the tip
  • capitular - of or pertaining to an ecclesiastical chapter
  • capitulum - a dense clusters of flowers or foliage
  • capsular - of or relating to a capsule
  • capsule - a pill in the form of a small rounded gelatinous container with medicine inside
  • captopril - a drug (trade name Capoten) that blocks the formation of angiotensin in the kidneys resulting in vasodilation; used in the treatment of hypertension and congestive heart failure
  • capture - the act of forcibly dispossessing an owner of property
  • caput - a headlike protuberance on an organ or structure
  • car - a motor vehicle with four wheels; usually propelled by an internal combustion engine
  • carbohydrate - an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well as macromolecular substances; are classified according to the number of monosaccharide groups they contain
  • carbon - a copy made with carbon paper
  • carbonate - a salt or ester of carbonic acid (containing the anion CO3)
  • carbonic - relating to or consisting of or yielding carbon
  • carbuncle - an infection larger than a boil and with several openings for discharge of pus
  • carcinogen - any substance that produces cancer
  • carcinogenic - causing or tending to cause cancer
  • carcinoid - a small tumor (benign or malignant) arising from the mucosa of the gastrointestinal tract; usually associated with excessive secretion of serotonin
  • carcinoma - any malignant tumor derived from epithelial tissue; one of the four major types of cancer
  • carcinomatous - being or relating to carcinoma
  • carcinosarcoma - a malignant neoplasm composed of carcinoma and sarcoma extensively intermixed
  • card - one of a set of small pieces of stiff paper marked in various ways and used for playing games or for telling fortunes
  • cardia - the opening into the stomach and that part of the stomach connected to the esophagus
  • cardiac - of or relating to the heart
  • cardinal - serving as an essential component
  • cardiogram - a graphical recording of the cardiac cycle produced by an electrocardiograph
  • cardiograph - medical instrument that records electric currents associated with contractions of the heart
  • cardiography - diagnostic procedure consisting of recording the activity of the heart electronically with a cardiograph (and producing a cardiogram)
  • cardiologist - a specialist in cardiology; a specialist in the structure and function and disorders of the heart
  • cardiology - the branch of medicine dealing with the heart and its diseases
  • cardiomegaly - an abnormal enlargement of the heart
  • cardiomyopathy - a disorder (usually of unknown origin) of the heart muscle (myocardium)
  • cardiopathy - a disease of the heart
  • cardiopulmonary - of or pertaining to or affecting both the heart and the lungs and their functions
  • cardiorespiratory - of or pertaining to or affecting both the heart and the lungs and their functions
  • cardiospasm - a spasm of the cardiac sphincter (between the esophagus and the stomach); if the cardiac sphincter does not relax during swallowing the passage of food into the stomach is obstructed
  • cardiovascular - of or pertaining to or involving the heart and blood vessels
  • carditis - inflammation of the heart
  • cards - a game played with playing cards
  • care - activity involved in maintaining something in good working order
  • career - the general progression of your working or professional life
  • careful - exercising caution or showing care or attention
  • carefully - taking care or paying attention
  • caregiver - a person who is responsible for attending to the needs of a child or dependent adult
  • careworn - showing the wearing effects of overwork or care or suffering
  • caries - soft decayed area in a tooth; progressive decay can lead to the death of a tooth
  • carina - any of various keel-shaped structures or ridges such as that on the breastbone of a bird or that formed by the fused petals of a pea blossom
  • caring - feeling and exhibiting concern and empathy for others
  • carlos - Venezuelan master terrorist raised by a Marxist-Leninist father; trained and worked with many terrorist groups (born in 1949)
  • carminative - relieving gas in the alimentary tract (colic or flatulence or griping)
  • carmine - of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies
  • carotene - yellow or orange-red fat-soluble pigments in plants
  • carotid - of or relating to either of the two major arteries supplying blood to the head and neck
  • carp - any of various freshwater fish of the family Cyprinidae
  • carpal - of or relating to the wrist
  • carpus - a joint between the distal end of the radius and the proximal row of carpal bones
  • carrier - (genetics) an organism that possesses a recessive gene whose effect is masked by a dominant allele; the associated trait is not apparent but can be passed on to offspring
  • carry - the act of carrying something
  • cartilage - tough elastic tissue; mostly converted to bone in adults
  • cartilaginous - difficult to chew
  • caruncle - an outgrowth on a plant or animal such as a fowl's wattle or a protuberance near the hilum of certain seeds
  • cascara - dried bark of the cascara buckthorn used as a laxative
  • case - a portable container for carrying several objects
  • casein - a milk protein used in making e.g. plastics and adhesives
  • caspar - (New Testament) one of the three sages from the east who came bearing gifts for the infant Jesus
  • cast - (of molten metal or glass) formed by pouring or pressing into a mold
  • castor - type genus of the Castoridae: beavers
  • castrated - deprived of sexual capacity or sexual attributes
  • castration - surgical removal of the testes or ovaries (usually to inhibit hormone secretion in cases of breast cancer in women or prostate cancer in men)
  • casualty - a decrease of military personnel or equipment
  • cat - feline mammal usually having thick soft fur and no ability to roar: domestic cats; wildcats
  • catabolic - characterized by destructive metabolism
  • catabolism - breakdown in living organisms of more complex substances into simpler ones together with release of energy
  • catalase - enzyme found in most plant and animal cells that functions as an oxidative catalyst; decomposes hydrogen peroxide into hydrogen and water
  • catalepsy - a trancelike state with loss of voluntary motion and failure to react to stimuli
  • catalyse - change by catalysis or cause to catalyze
  • catalysis - acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction
  • catalyst - something that causes an important event to happen
  • catalytic - relating to or causing or involving catalysis
  • catalyze - change by catalysis or cause to catalyze
  • catamenia - the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
  • cataract - a large waterfall; violent rush of water over a precipice
  • catarrh - inflammation of the nose and throat with increased production of mucus
  • catarrhal - of or relating to a catarrh
  • catatonia - extreme tonus; muscular rigidity; a common symptom in catatonic schizophrenia
  • catatonic - characterized by catatonia especially either rigidity or extreme laxness of limbs
  • catch - the act of catching an object with the hands
  • catching - (of disease) capable of being transmitted by infection
  • catchment - a structure in which water is collected
  • category - a general concept that marks divisions or coordinations in a conceptual scheme
  • catering - providing food and services
  • catgut - a strong cord made from the intestines of sheep and used in surgery
  • catharsis - (psychoanalysis) purging of emotional tensions
  • cathartic - strongly laxative
  • catheter - a thin flexible tube inserted into the body to permit introduction or withdrawal of fluids or to keep the passageway open
  • catheterisation - the operation of introducing a catheter into the body
  • catheterise - insert a catheter into (a body part)
  • catheterization - the operation of introducing a catheter into the body
  • catheterize - insert a catheter into (a body part)
  • cathode - a negatively charged electrode that is the source of electrons entering an electrical device
  • cattle - domesticated bovine animals as a group regardless of sex or age
  • cauda - any taillike structure
  • caudal - situated in or directed toward the part of the body from which the tail arises
  • caudate - having a tail or taillike appendage
  • caul - the inner membrane of embryos in higher vertebrates (especially when covering the head at birth)
  • cauliflower - compact head of white undeveloped flowers
  • causal - involving or constituting a cause; causing
  • causalgia - a burning pain in a limb along the course of a peripheral nerve; usually associated with skin changes
  • cause - a justification for something existing or happening
  • causing - the act of causing something to happen
  • caustic - of a substance, especially a strong acid; capable of destroying or eating away by chemical action
  • cauterisation - the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing
  • cauterise - make insensitive or callous; deaden feelings or morals
  • cauterization - the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing
  • cauterize - burn, sear, or freeze (tissue) using a hot iron or electric current or a caustic agent
  • cautery - the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing
  • cavernous - being or suggesting a cavern
  • cavity - (anatomy) a natural hollow or sinus within the body
  • cbc - counting the number of white and red blood cells and the number of platelets in 1 cubic millimeter of blood
  • cc - a metric unit of volume equal to one thousandth of a liter
  • cd - a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser
  • cecum - the cavity in which the large intestine begins and into which the ileum opens
  • cefotaxime - a parenteral cephalosporin (trade name Claforan) used for severe infections of the lungs or throat or ears or urinary tract
  • celiac - belonging to or prescribed for celiac disease
  • cell - (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
  • cellular - characterized by or divided into or containing cells or compartments (the smallest organizational or structural unit of an organism or organization)
  • cellulite - lumpy deposits of body fat especially on women's thighs etc.
  • cellulitis - an inflammation of body tissue (especially that below the skin) characterized by fever and swelling and redness and pain
  • cellulose - a polysaccharide that is the chief constituent of all plant tissues and fibers
  • celsius - Swedish astronomer who devised the centigrade thermometer (1701-1744)
  • cement - something that hardens to act as adhesive material
  • cementum - a specialized bony substance covering the root of a tooth
  • census - a periodic count of the population
  • cent - a fractional monetary unit of several countries
  • center - equally distant from the extremes
  • centesis - (surgery) the act of puncturing a body cavity or organ with a hollow needle in order to draw out fluid
  • centile - (statistics) any of the 99 numbered points that divide an ordered set of scores into 100 parts each of which contains one-hundredth of the total
  • centiliter - a metric unit of volume equal to one hundredth of a liter
  • centilitre - a metric unit of volume equal to one hundredth of a liter
  • centimeter - a metric unit of length equal to one hundredth of a meter
  • centimetre - a metric unit of length equal to one hundredth of a meter
  • central - in or near a center or constituting a center; the inner area
  • centrally - in or near or toward a center or according to a central role or function
  • centre - a low-lying region in central France
  • centrifugal - tending to move away from a center
  • centrifugation - the process of separating substances by the use of a centrifuge
  • centrifuge - an apparatus that uses centrifugal force to separate particles from a suspension
  • centriole - one of a pair of small cylindrical cell organelles near the nucleus in animal cells; composed of nine triplet microtubules and form the asters during mitosis
  • centripetal - tending to move toward a center
  • centromere - a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape
  • centrosome - small region of cytoplasm adjacent to the nucleus; contains the centrioles and serves to organize the microtubules
  • centrum - the main body of a vertebra
  • century - a period of 100 years
  • cephalalgia - pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs
  • cephalexin - an oral cephalosporin (trade names Keflex and Keflin and Keftab) commonly prescribe for mild to moderately severe infections of the skin or ears or throat or lungs or urinary tract
  • cephalic - of or relating to the head
  • cephalometry - measurement of human heads
  • cephalosporin - one of several broad spectrum antibiotic substances obtained from fungi and related to penicillin (trade names Mefoxin); addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity
  • cerebellar - relating to or associated with the cerebellum
  • cerebellum - a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans
  • cerebral - involving intelligence rather than emotions or instinct
  • cerebration - the process of using your mind to consider something carefully
  • cerebrospinal - of or relating to the brain and spinal cord
  • cerebrovascular - of or relating to the brain and the blood vessels that supply it
  • cerebrum - anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans
  • ceremony - any activity that is performed in an especially solemn elaborate or formal way
  • certain - exercising or taking care great enough to bring assurance
  • certainly - definitely or positively (`sure' is sometimes used informally for `surely')
  • certificate - a document attesting to the truth of certain stated facts
  • certified - endorsed authoritatively as having met certain requirements
  • certify - declare legally insane
  • cerumen - a soft yellow wax secreted by glands in the ear canal
  • ceruminous - relating to or secreting cerumen
  • cervical - relating to or associated with the neck
  • cervicitis - inflammation of the uterine cervix
  • cervix - necklike opening to the uterus
  • cesarean - relating to abdominal delivery
  • cesium - a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
  • cessation - a stopping
  • cestode - ribbonlike flatworms that are parasitic in the intestines of humans and other vertebrates
  • cetrimide - a cationic detergent that is a powerful disinfectant
  • chafe - soreness and warmth caused by friction
  • chafed - painful from having the skin abraded
  • chafing - soreness or irritation of the skin caused by friction
  • chain - a series of (usually metal) rings or links fitted into one another to make a flexible ligament
  • chains - metal shackles; for hands or legs
  • chair - a seat for one person, with a support for the back
  • chalazion - a small sebaceous cyst of the eyelid resulting when a Meibomian gland is blocked
  • challenge - a demand by a sentry for a password or identification
  • chamber - a natural or artificial enclosed space
  • chambers - English architect (1723-1796)
  • chance - occurring or appearing or singled out by chance
  • chancre - a small hard painless nodule at the site of entry of a pathogen (as syphilis)
  • chancroid - infectious venereal ulcer
  • change - the action of changing something
  • changed - made or become different in some respect
  • changing - marked by continuous change or effective action
  • channel - a passage for water (or other fluids) to flow through
  • channels - official routes of communication
  • chaplain - a clergyman ministering to some institution
  • chapped - used of skin roughened as a result of cold or exposure
  • character - (genetics) an attribute (structural or functional) that is determined by a gene or group of genes
  • characterise - describe or portray the character or the qualities or peculiarities of
  • characterised - of the meaning of words or concepts; stated precisely
  • characteristic - typical or distinctive
  • characterize - be characteristic of
  • characterized - of the meaning of words or concepts; stated precisely
  • charcoal - of a very dark grey
  • charcot - French neurologist who tried to use hypnotism to cure hysteria (1825-1893)
  • charge - a impetuous rush toward someone or something
  • charged - of a particle or body or system; having a net amount of positive or negative electric charge
  • charity - an activity or gift that benefits the public at large
  • charles - a river in eastern Massachusetts that empties into Boston Harbor and that separates Cambridge from Boston
  • charlotte - a mold lined with cake or crumbs and filled with fruit or whipped cream or custard
  • chart - a map designed to assist navigation by air or sea
  • chat - an informal conversation
  • cheap - relatively low in price or charging low prices
  • check - the act of inspecting or verifying
  • checked - patterned with alternating squares of color
  • checkup - a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person
  • cheek - either side of the face below the eyes
  • cheekbone - the arch of bone beneath the eye that forms the prominence of the cheek
  • cheese - a solid food prepared from the pressed curd of milk
  • cheilitis - inflammation and cracking of the skin of the lips
  • cheiloschisis - a congenital cleft in the middle of the upper lip
  • cheilosis - a disorder of the lips marked by scaling and fissures at the corners of the mouth; caused by a deficiency of riboflavin
  • chelate - having or resembling chelae or claws
  • cheloid - raised pinkish scar tissue at the site of an injury; results from excessive tissue repair
  • chemical - relating to or used in chemistry
  • chemist - a scientist who specializes in chemistry
  • chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
  • chemoreceptor - a sensory receptor that responds to chemical stimuli
  • chemosis - edema of the mucous membrane of the eyeball and eyelid lining
  • chemotaxis - movement by a cell or organism in reaction to a chemical stimulus
  • chemotherapeutic - of or relating to chemotherapy
  • chemotherapy - the use of chemical agents to treat or control disease (or mental illness)
  • cheque - a written order directing a bank to pay money
  • chest - box with a lid; used for storage; usually large and sturdy
  • chesty - having or showing feelings of unwarranted importance out of overbearing pride
  • chew - biting and grinding food in your mouth so it becomes soft enough to swallow
  • chewing - biting and grinding food in your mouth so it becomes soft enough to swallow
  • chi - the 22nd letter of the Greek alphabet
  • chiasm - an intersection or crossing of two tracts in the form of the letter X
  • chiasma - an intersection or crossing of two tracts in the form of the letter X
  • chicago - largest city in Illinois; a bustling Great Lakes port that extends 26 miles along the southwestern shoreline of Lake Michigan
  • chickenpox - an acute contagious disease caused by herpes varicella zoster virus; causes a rash of vesicles on the face and body
  • chief - most important element
  • chilblain - inflammation of the hands and feet caused by exposure to cold and moisture
  • chilblains - inflammation of the hands and feet caused by exposure to cold and moisture
  • child - a young person of either sex
  • childbearing - relating to or suitable for childbirth
  • childbirth - the parturition process in human beings; having a baby; the process of giving birth to a child
  • childhood - the state of a child between infancy and adolescence
  • childless - without offspring
  • chill - uncomfortably cool
  • chilling - so scary as to cause chills and shudders
  • chin - the protruding part of the lower jaw
  • china - high quality porcelain originally made only in China
  • chinese - of or pertaining to China or its peoples or cultures
  • chiropodist - a specialist in care for the feet
  • chiropody - the branch of medicine concerned with the feet
  • chiropractic - a method of treatment that manipulates body structures (especially the spine) to relieve low back pain or even headache or high blood pressure
  • chiropractor - a therapist who practices chiropractic
  • chisel - an edge tool with a flat steel blade with a cutting edge
  • chlamydia - coccoid rickettsia infesting birds and mammals; cause infections of eyes and lungs and genitourinary tract
  • chlamydial - of or pertaining to the sexually transmitted infection or to the parasite
  • chloasma - a tan discoloration of a woman's face that is associated with pregnancy or with the use of oral contraceptives
  • chlorambucil - an alkalating agent (trade name Leukeran) used to treat some kinds of cancer
  • chloramphenicol - an oral antibiotic (trade name Chloromycetin) used to treat serious infections (especially typhoid fever)
  • chlordiazepoxide - a tranquilizer (trade names Librium and Libritabs) used in the treatment of alcoholism
  • chlorhexidine - a long-lasting liquid antiseptic; used by surgeons to wash their hands before performing surgery
  • chloride - any salt of hydrochloric acid (containing the chloride ion)
  • chlorination - disinfection of water by the addition of small amounts of chlorine or a chlorine compound
  • chlorine - a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
  • chloroform - a volatile liquid haloform (CHCl3); formerly used as an anesthetic
  • chlorophyll - any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms
  • chloroquine - an antimalarial drug used to treat malaria and amebic dysentery and systemic lupus erythematosus
  • chlorosis - iron deficiency anemia in young women; characterized by weakness and menstrual disturbances and a green color to the skin
  • chlorothiazide - a diuretic drug (trade name Diuril) used in the treatment of edema and hypertension
  • chlorpromazine - a drug (trade name Thorazine) derived from phenothiazine that has antipsychotic effects and is used as a sedative and tranquilizer
  • chlorthalidone - a diuretic (trade names Hygroton and Thalidone) used to control hypertension and conditions that cause edema; effective in lowering blood pressure to prevent heart attacks
  • chocolate - a medium brown to dark-brown color
  • choice - of superior grade
  • choke - a valve that controls the flow of air into the carburetor of a gasoline engine
  • choked - stopped up; clogged up
  • choking - the act of suffocating (someone) by constricting the windpipe
  • cholangiography - roentgenographic examination of the bile ducts after a contrast medium has been injected
  • cholangitis - inflammation of the bile ducts
  • cholecystectomy - surgical removal of the gall bladder (usually for relief of gallstone pain)
  • cholecystitis - inflammation of the gall bladder
  • cholelithiasis - the presence of gallstones in the gallbladder
  • cholelithotomy - removal of gallstone through an incision in the gallbladder
  • cholera - an acute intestinal infection caused by ingestion of contaminated water or food
  • cholestasis - a condition in which little or no bile is secreted or the flow of bile into the digestive tract is obstructed
  • cholesterol - an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues
  • choline - a B-complex vitamin that is a constituent of lecithin; essential in the metabolism of fat
  • cholinergic - releasing or activated by acetylcholine or a related compound
  • cholinesterase - an enzyme that hydrolyses acetylcholine (into choline and acetic acid)
  • chondrodystrophy - an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism
  • chondroma - a common benign tumor of cartilage cells
  • chondrosarcoma - a malignant neoplasm of cartilage cells
  • choose - pick out, select, or choose from a number of alternatives
  • chorditis - inflammation of the vocal cords
  • chorea - any of several degenerative nervous disorders characterized by spasmodic movements of the body and limbs
  • chorion - outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals)
  • chorionic - of or relating to a chorion
  • choroid - a highly vascular membrane in the eye between the retina and the sclera
  • chosen - preferred above all others
  • christian - following the teachings or manifesting the qualities or spirit of Jesus Christ
  • christmas - a Christian holiday celebrating the birth of Christ; a quarter day in England, Wales, and Ireland
  • chromatid - one of two identical strands into which a chromosome splits during mitosis
  • chromatin - the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division it condenses into chromosomes
  • chromatography - a process used for separating mixtures by virtue of differences in absorbency
  • chromium - a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
  • chromosomal - of or relating to a chromosome
  • chromosome - a threadlike body in the cell nucleus that carries the genes in a linear order
  • chronic - being long-lasting and recurrent or characterized by long suffering
  • chronological - relating to or arranged according to temporal order
  • chrysotherapy - the use of chemicals containing gold for treating diseases (such as rheumatoid arthritis)
  • chyle - a milky fluid consisting of lymph and emulsified fats; formed in the small intestine during digestion of ingested fats
  • chylomicron - a microscopic particle of triglycerides produced in the intestines during digestion; in the bloodstream they release their fatty acids into the blood
  • chyme - a semiliquid mass of partially digested food that passes from the stomach through the pyloric sphincter into the duodenum
  • ci - a unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second
  • cicatrise - form a scar, after an injury
  • cicatrix - a mark left (usually on the skin) by the healing of injured tissue
  • cicatrize - form a scar, after an injury
  • cigar - a roll of tobacco for smoking
  • cigarette - finely ground tobacco wrapped in paper; for smoking
  • ciliary - of or relating to the human eyelash
  • ciliated - having a margin or fringe of hairlike projections
  • cilium - a hairlike projection from the surface of a cell; provides locomotion in free-swimming unicellular organisms
  • cimetidine - a drug (trade name Tagamet) used to treat peptic ulcers by decreasing the secretion of stomach acid
  • cimex - type genus of the Cimicidae: bedbugs
  • cinchona - any of several trees of the genus Cinchona
  • cingulum - (anatomy) an encircling structure (as the ridge around the base of a tooth)
  • ciprofloxacin - an oral antibiotic (trade name Cipro) used against serious bacterial infections of the skin or respiratory tract or urinary tract or bones or joints
  • circadian - of or relating to biological processes occurring at 24-hour intervals
  • circle - any circular or rotating mechanism
  • circular - marked by or moving in a circle
  • circulate - cause to become widely known
  • circulating - passing from one to another
  • circulation - the spread or transmission of something (as news or money) to a wider group or area
  • circulatory - relating to circulatory system or to circulation of the blood
  • circumcise - cut the foreskin off male babies or teenage boys
  • circumcision - the act of circumcising; surgical removal of the foreskin of males
  • circumduction - a circular movement of a limb or eye
  • circumflex - a diacritical mark (^) placed above a vowel in some languages to indicate a special phonetic quality
  • circumstances - a person's financial situation (good or bad)
  • circumvallate - surround with or as if with a rampart or other fortification
  • cirrhosis - a chronic disease interfering with the normal functioning of the liver; the major cause is chronic alcoholism
  • cistern - an artificial reservoir for storing liquids; especially an underground tank for storing rainwater
  • cisterna - a sac or cavity containing fluid especially lymph or cerebrospinal fluid
  • citrate - a salt or ester of citric acid
  • citric - of or related to citric acid
  • citrulline - an amino acid that does not occur in proteins but is an intermediate in the conversion of ornithine to arginine
  • civil - of or in a condition of social order
  • cjd - rare (usually fatal) brain disease (usually in middle age) caused by an unidentified slow virus; characterized by progressive dementia and gradual loss of muscle control
  • cl - a metric unit of volume equal to one hundredth of a liter
  • cladding - a protective covering that protects the outside of a building
  • claim - demand for something as rightful or due
  • clamp - a device (generally used by carpenters) that holds things firmly together
  • clap - a sudden very loud noise
  • clarification - an interpretation that removes obstacles to understanding
  • clasp - the act of grasping
  • class - elegance in dress or behavior
  • classic - characteristic of the classical artistic and literary traditions
  • classification - restriction imposed by the government on documents or weapons that are available only to certain authorized people
  • classified - arranged into classes
  • classify - arrange or order by classes or categories
  • claudication - disability of walking due to crippling of the legs or feet
  • claudius - Roman Emperor after his nephew Caligula was murdered; consolidated the Empire and conquered southern Britain; was poisoned by his fourth wife Agrippina after her son Nero was named as Claudius' heir (10 BC to AD 54)
  • claustrophobia - a morbid fear of being closed in a confined space
  • claustrophobic - suffering from claustrophobia; abnormally afraid of closed-in places
  • clavicle - bone linking the scapula and sternum
  • clavus - a hard thickening of the skin (especially on the top or sides of the toes) caused by the pressure of ill-fitting shoes
  • claw - a bird's foot
  • clay - United States politician responsible for the Missouri Compromise between free and slave states (1777-1852)
  • clean - free of drugs
  • cleaned - made clean
  • cleaner - someone whose occupation is cleaning
  • cleaners - shop where dry cleaning is done
  • cleaning - the act of making something clean
  • cleanliness - diligence in keeping clean
  • cleansing - acting like an antiseptic
  • clear - of complexion; without such blemishes as e.g. acne
  • clearance - permission to proceed
  • clearing - the act of removing solid particles from a liquid
  • clearly - without doubt or question
  • cleavage - the act of cleaving or splitting
  • cleft - having one or more incisions reaching nearly to the midrib
  • clemens - United States writer and humorist best known for his novels about Tom Sawyer and Huckleberry Finn (1835-1910)
  • clerking - the activity of recording business transactions
  • client - a person who seeks the advice of a lawyer
  • climacteric - a period in a man's life corresponding to menopause
  • climate - the weather in some location averaged over some long period of time
  • climax - the decisive moment in a novel or play
  • cling - fruit (especially peach) whose flesh adheres strongly to the pit
  • clinic - a healthcare facility for outpatient care
  • clinical - scientifically detached; unemotional
  • clinically - in a clinical manner
  • clinician - a practitioner (of medicine or psychology) who does clinical work instead of laboratory experiments
  • clinodactyly - a congenital defect in which one or more toes or fingers are abnormally positioned
  • clinton - a town in east central Iowa
  • clip - a sharp slanting blow
  • clitoris - a female sexual organ homologous to the penis
  • cloaca - a waste pipe that carries away sewage or surface water
  • clock - a timepiece that shows the time of day
  • clomipramine - a tricyclic antidepressant drug
  • clone - a group of genetically identical cells or organisms derived from a single cell or individual by some kind of asexual reproduction
  • clonic - of or relating to abnormal neuromuscular activity characterized by rapidly alternating muscle contraction and relaxation
  • clonidine - an antihypertensive (trade name Catapres) that can be administered orally or via transdermal patches
  • cloning - a general term for the research activity that creates a copy of some biological entity (a gene or organism or cell)
  • clonus - convulsion characterized by alternating contractions and relaxations
  • close - marked by fidelity to an original
  • closed - not open or affording passage or access
  • closely - in a close relation or position in time or space
  • closer - (comparative of `near' or `close') within a shorter distance
  • closest - (superlative of `near' or `close') within the shortest distance
  • closing - final or ending
  • clostridium - spindle-shaped bacterial cell especially one swollen at the center by an endospore
  • closure - termination of operations
  • clot - a lump of material formed from the content of a liquid
  • cloth - artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
  • clothes - clothing in general
  • clothing - a covering designed to be worn on a person's body
  • clotted - thickened or coalesced in soft thick lumps (such as clogs or clots)
  • clotting - the process of forming semisolid lumps in a liquid
  • cloud - a visible mass of water or ice particles suspended at a considerable altitude
  • cloudy - (of especially liquids) clouded as with sediment
  • club - stout stick that is larger at one end
  • clubbing - a condition in which the ends of toes and fingers become wide and thick; a symptom of heart or lung disease
  • clump - a heavy dull sound (as made by impact of heavy objects)
  • clumping - the sound of a horse's hoofs hitting on a hard surface
  • cluster - a grouping of a number of similar things
  • cm - a metric unit of length equal to one hundredth of a meter
  • cmv - any of a group of herpes viruses that enlarge epithelial cells and can cause birth defects; can affect humans with impaired immunological systems
  • cns - the portion of the vertebrate nervous system consisting of the brain and spinal cord
  • co - a state in west central United States in the Rocky Mountains
  • coagulant - an agent that produces coagulation
  • coagulase - an enzyme that induces coagulation
  • coagulate - transformed from a liquid into a soft semisolid or solid mass
  • coagulated - changed into a solid mass
  • coagulation - the process of forming semisolid lumps in a liquid
  • coagulum - a lump of material formed from the content of a liquid
  • coal - fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
  • coalesce - fuse or cause to grow together
  • coalescence - the union of diverse things into one body or form or group; the growing together of parts
  • coarctation - (biology) a narrowing or constriction of a vessel or canal; especially a congenital narrowing of the aorta
  • coarse - conspicuously and tastelessly indecent
  • coat - growth of hair or wool or fur covering the body of an animal
  • coated - having or dressed in a coat
  • coating - a thin layer covering something
  • cobalt - a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
  • cobra - venomous Asiatic and African elapid snakes that can expand the skin of the neck into a hood
  • cocaine - a narcotic (alkaloid) extracted from coca leaves; used as a surface anesthetic or taken for pleasure; can become powerfully addictive
  • cocci - any spherical or nearly spherical bacteria
  • coccidioidomycosis - an infection of the lungs and skin characterized by excessive sputum and nodules
  • coccus - any spherical or nearly spherical bacteria
  • coccygeal - of or relating to or near the coccyx
  • coccyx - the end of the vertebral column in humans and tailless apes
  • cochlea - the snail-shaped tube (in the inner ear coiled around the modiolus) where sound vibrations are converted into nerve impulses by the organ of Corti
  • cochlear - of or relating to the cochlea of the ear
  • cocktail - an appetizer served as a first course at a meal
  • cod - payable by the recipient on delivery
  • code - a coding system used for transmitting messages requiring brevity or secrecy
  • codeine - derivative of opium; used as an antitussive (to relieve coughing) and an analgesic (to relive pain)
  • codon - a specific sequence of three adjacent bases on a strand of DNA or RNA that provides genetic code information for a particular amino acid
  • coeliac - of or in or belonging to the cavity of the abdomen
  • coelom - a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity
  • coffee - a beverage consisting of an infusion of ground coffee beans
  • cognition - the psychological result of perception and learning and reasoning
  • cognitive - of or being or relating to or involving cognition
  • cohort - a band of warriors (originally a unit of a Roman Legion)
  • coil - a structure consisting of something wound in a continuous series of loops
  • coiled - curled or wound (especially in concentric rings or spirals)
  • coin - a metal piece (usually a disc) used as money
  • coital - of or relating to coitus or copulation
  • coition - the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur
  • coitus - the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur
  • cold - lacking the warmth of life
  • colic - acute abdominal pain (especially in infants)
  • colicky - suffering from excessive gas in the alimentary canal
  • colitis - inflammation of the colon
  • collagen - a fibrous scleroprotein in bone and cartilage and tendon and other connective tissue; yields gelatin on boiling
  • collagenous - relating to or consisting of collagen
  • collapse - a mishap caused by something suddenly falling down or caving in
  • collar - a figurative restraint
  • collarbone - bone linking the scapula and sternum
  • collateral - descended from a common ancestor but through different lines
  • collect - payable by the recipient on delivery
  • collected - in full control of your faculties
  • collecting - the act of gathering something together
  • collection - the act of gathering something together
  • college - a complex of buildings in which an institution of higher education is housed
  • collins - tall iced drink of liquor (usually gin) with fruit juice
  • collodion - a colorless syrupy solution of pyroxylin in ether and alcohol; used as a coating for wounds or photographic films
  • colloid - a mixture with properties between those of a solution and fine suspension
  • collyrium - lotion consisting of a solution used as a cleanser for the eyes
  • colon - the part of the large intestine between the cecum and the rectum; it extracts moisture from food residues before they are excreted
  • colonic - of or relating to the colon
  • colonoscope - an elongated fiberoptic endoscope for examining the entire colon from cecum to rectum
  • colonoscopy - visual examination of the colon (with a colonoscope) from the cecum to the rectum; requires sedation
  • colony - a group of animals of the same type living together
  • coloration - choice and use of colors (as by an artist)
  • colorectal - relating to or affecting the colon and the rectum
  • colostomy - a surgical operation that creates an opening from the colon to the surface of the body to function as an anus
  • colostrum - milky fluid secreted for the first day or two after parturition
  • colour - having or capable of producing colors
  • coloured - having skin rich in melanin pigments
  • colouring - the act or process of changing the color of something
  • colourless - weak in color; not colorful
  • colours - a flag that shows its nationality
  • colpitis - inflammation of the vagina
  • colpocele - hernia projecting into the vagina
  • colpocystitis - inflammation of the vagina and bladder
  • columbus - a city in western Georgia on the Chattahoochee River; industrial center
  • column - (architeture) a tall cylindrical vertical upright and used to support a structure
  • columnar - characterized by columns
  • coma - a state of deep and often prolonged unconsciousness; usually the result of disease or injury
  • comatose - in a state of deep and usually prolonged unconsciousness; unable to respond to external stimuli
  • comb - the act of drawing a comb through hair
  • combat - an engagement fought between two military forces
  • combed - (of hair) made tidy with a comb
  • combination - the act of combining things to form a new whole
  • combine - harvester that heads and threshes and cleans grain while moving across the field
  • combined - made or joined or united into one
  • combining - an occurrence that results in things being united
  • combustion - a process in which a substance reacts with oxygen to give heat and light
  • come - the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
  • comedo - a black-tipped plug clogging a pore of the skin
  • comfort - a feeling of freedom from worry or disappointment
  • comfortable - providing or experiencing physical well-being or relief (`comfy' is informal)
  • comforted - made comfortable or more comfortable in a time of distress
  • comforter - device used for an infant to suck or bite on
  • comforting - affording comfort or solace
  • comforts - things that make you comfortable and at ease
  • comfrey - leaves make a popular tisane; young leaves used in salads or cooked
  • coming - yet to come
  • commando - an amphibious military unit trained for raids into enemy territory
  • commensal - living in a state of commensalism
  • comment - a written explanation or criticism or illustration that is added to a book or other textual material
  • commercial - connected with or engaged in or sponsored by or used in commerce or commercial enterprises
  • commission - the act of granting authority to undertake certain functions
  • commissioned - (of military officers) holding by virtue of a commission a rank of second lieutenant or ensign or above
  • commissioner - a government administrator
  • commissioning - the act of granting authority to undertake certain functions
  • commissure - a bundle of nerve fibers passing from one side to the other of the brain or spinal cord
  • commit - cause to be admitted; of persons to an institution
  • commitment - the official act of consigning a person to confinement (as in a prison or mental hospital)
  • committed - bound or obligated, as under a pledge to a particular cause, action, or attitude
  • committee - a special group delegated to consider some matter
  • commode - a tall elegant chest of drawers
  • common - having no special distinction or quality; widely known or commonly encountered; average or ordinary or usual
  • commonly - under normal conditions
  • communicable - readily communicated
  • communicate - transmit thoughts or feelings
  • communicating - the activity of communicating; the activity of conveying information
  • communication - something that is communicated by or to or between people or groups
  • community - (ecology) a group of interdependent organisms inhabiting the same region and interacting with each other
  • compact - closely and firmly united or packed together
  • company - an institution created to conduct business
  • comparatively - in a relative manner; by comparison to something else
  • compare - qualities that are comparable
  • comparing - examining resemblances or differences
  • comparison - examining resemblances or differences
  • compassion - the humane quality of understanding the suffering of others and wanting to do something about it
  • compatibility - capability of existing or performing in harmonious or congenial combination
  • compatible - able to exist and perform in harmonious or agreeable combination
  • compensate - make payment to; compensate
  • compensation - something (such as money) given or received as payment or reparation (as for a service or loss or injury)
  • competence - the quality of being adequately or well qualified physically and intellectually
  • competitive - showing a fighting disposition
  • compilation - the act of compiling (as into a single book or file or list)
  • complaining - expressing pain or dissatisfaction of resentment
  • complaint - (civil law) the first pleading of the plaintiff setting out the facts on which the claim for relief is based
  • complement - something added to complete or make perfect
  • complementary - of words or propositions so related that each is the negation of the other
  • complete - having every necessary or normal part or component or step
  • completed - caught
  • completely - so as to be complete; with everything necessary
  • completing - acting as or providing a complement (something that completes the whole)
  • complex - complicated in structure; consisting of interconnected parts
  • complexion - (obsolete) a combination of elements (of dryness and warmth or of the four humors) that was once believed to determine a person's health and temperament
  • compliance - happy friendly agreement
  • complicated - difficult to analyze or understand
  • complication - the act or process of complicating
  • component - an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system
  • composed - serenely self-possessed and free from agitation especially in times of stress
  • composition - something that is created by arranging several things to form a unified whole
  • compound - of leaf shapes; of leaves composed of several similar parts or lobes
  • comprehensive - including all or everything
  • compress - a cloth pad or dressing (with or without medication) applied firmly to some part of the body (to relieve discomfort or reduce fever)
  • compressed - reduced in volume by pressure
  • compression - applying pressure
  • compulsion - using force to cause something
  • compulsive - strongly motivated to succeed
  • compulsively - in a compulsive manner
  • compulsory - required by rule
  • computer - a machine for performing calculations automatically
  • computerised - stored, processed, analyzed, or generated by computer
  • computing - the procedure of calculating; determining something by mathematical or logical methods
  • con - on the negative side
  • concave - curving inward
  • conceive - become pregnant; undergo conception
  • conceived - formed in the mind
  • concentrate - a concentrated example
  • concentrated - gathered together or made less diffuse
  • concentration - strengthening the amount of a substance in a unit amount of another substance (as of a solute in a mixture) by removing the other substance
  • concept - an abstract or general idea inferred or derived from specific instances
  • conception - the act of becoming pregnant; fertilization of an ovum by a spermatozoon
  • conceptual - being or characterized by concepts or their formation
  • conceptus - an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
  • concern - something that interests you because it is important or affects you
  • concerned - feeling or showing worry or solicitude
  • concha - (anatomy) a structure that resembles a shell in shape
  • concise - expressing much in few words
  • concordance - an index of all main words in a book along with their immediate contexts
  • concretion - the formation of stonelike objects within a body organ (e.g., the kidneys)
  • concussion - any violent blow
  • condition - the procedure that is varied in order to estimate a variable's effect by comparison with a control condition
  • conditioned - physically fit
  • conditioning - a learning process in which an organism's behavior becomes dependent on the occurrence of a stimulus in its environment
  • condom - contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
  • conduct - manner of acting or controlling yourself
  • conducting - the direction of an orchestra or choir
  • conduction - the transmission of heat or electricity or sound
  • conductive - having the quality or power of conducting heat or electricity or sound; exhibiting conductivity
  • conductor - a device designed to transmit electricity, heat, etc.
  • conduit - a passage (a pipe or tunnel) through which water or electric wires can pass
  • condyle - a round bump on a bone where it forms a joint with another bone
  • cone - any cone-shaped artifact
  • confabulation - (psychiatry) a plausible but imagined memory that fills in gaps in what is remembered
  • confederation - the act of forming an alliance or confederation
  • confidence - a secret that is confided or entrusted to another
  • confident - not liable to error in judgment or action
  • confidential - the level of official classification for documents next above restricted and below secret; available only to persons authorized to see documents so classified
  • confidentiality - discretion in keeping secret information
  • confined - not free to move about
  • confinement - the act of restraining of a person's liberty by confining them
  • confirm - make more firm
  • confirmed - having a habit of long standing
  • conform - be similar, be in line with
  • conforming - adhering to established customs or doctrines (especially in religion)
  • confounding - that confounds or contradicts or confuses
  • confuse - mistake one thing for another
  • confused - mentally confused; unable to think with clarity or act intelligently
  • confusion - a mistake that results from taking one thing to be another
  • congeal - become gelatinous
  • congenital - present at birth but not necessarily hereditary; acquired during fetal development
  • congested - overfull as with blood
  • congestion - excessive crowding
  • congestive - relating to or affected by an abnormal collection of blood or other fluid
  • conjoined - consisting of two or more associated entities
  • conjugate - of an organic compound; containing two or more double bonds each separated from the other by a single bond
  • conjunction - an uninflected function word that serves to conjoin words or phrases or clauses or sentences
  • conjunctiva - a transparent membrane covering the eyeball and under surface of the eyelid
  • conjunctival - of or relating to the conjunctiva
  • conjunctivitis - inflammation of the conjunctiva of the eye
  • connect - join for the purpose of communication
  • connected - joined or linked together
  • connecticut - a New England state; one of the original 13 colonies
  • connecting - syntactically connecting sentences or elements of a sentence
  • connection - shifting from one form of transportation to another
  • connective - connecting or tending to connect
  • conrad - English novelist (born in Poland) noted for sea stories and for his narrative technique (1857-1924)
  • consanguinity - (anthropology) related by blood
  • conscience - conformity to one's own sense of right conduct
  • conscious - (followed by `of') showing realization or recognition of something
  • consciously - with awareness
  • consciousness - an alert cognitive state in which you are aware of yourself and your situation
  • consensus - agreement in the judgment or opinion reached by a group as a whole
  • consent - permission to do something
  • consequence - having important effects or influence
  • conservative - resistant to change
  • conserve - fruit preserved by cooking with sugar
  • considerable - large or relatively large in number or amount or extent or degree
  • considerably - to a great extent or degree
  • consideration - a considerate and thoughtful act
  • considered - carefully weighed
  • consist - be composed of
  • consistency - a harmonious uniformity or agreement among things or parts
  • consolidation - the act of combining into an integral whole
  • conspicuous - obvious to the eye or mind
  • constant - steadfast in purpose or devotion or affection
  • constantly - without interruption
  • constipated - have difficult or incomplete or infrequent evacuation of the bowels
  • constipation - irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis
  • constituent - constitutional in the structure of something (especially your physical makeup)
  • constitution - the act of forming something
  • constitutional - sanctioned by or consistent with or operating under a constitution
  • constitutionally - according to the constitution
  • constrict - become tight or as if tight
  • constricted - inhibited
  • constricting - (of circumstances) tending to constrict freedom
  • constriction - the action or process of compressing
  • constrictive - restricting the scope or freedom of action
  • constrictor - any of various large nonvenomous snakes that kill their prey by crushing it in its coils
  • construction - drawing a figure satisfying certain conditions as part of solving a problem or proving a theorem
  • consult - advise professionally
  • consultancy - the practice of giving expert advice within a particular field
  • consultant - an expert who gives advice
  • consultation - a conference between two or more people to consider a particular question
  • consumed - completely used up
  • consumption - the act of consuming something
  • contact - close interaction
  • contagion - the communication of an attitude or emotional state among a number of people
  • contagious - easily diffused or spread as from one person to another
  • contain - be capable of holding or containing
  • contained - gotten under control
  • container - any object that can be used to hold things (especially a large metal boxlike object of standardized dimensions that can be loaded from one form of transport to another)
  • containment - the act of containing; keeping something from spreading
  • contaminant - a substance that contaminates
  • contaminate - make radioactive by adding radioactive material
  • contaminated - rendered unwholesome by contaminants and pollution
  • contaminating - spreading pollution or contamination; especially radioactive contamination
  • contamination - the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors
  • contemporary - belonging to the present time
  • content - satisfied or showing satisfaction with things as they are
  • contents - a list of divisions (chapters or articles) and the pages on which they start
  • continence - the exercise of self constraint in sexual matters
  • continent - having control over urination and defecation
  • continual - seemingly without interruption; chiefly restricted to what recurs regularly or frequently in a prolonged and closely spaced series
  • continually - seemingly without interruption
  • continuation - the act of continuing an activity without interruption
  • continue - exist over a prolonged period of time
  • continued - without stop or interruption
  • continuing - remaining in force or being carried on without letup
  • continuous - continuing in time or space without interruption
  • continuously - at every point
  • contraception - birth control by the use of devices (diaphragm or intrauterine device or condom) or drugs or surgery
  • contraceptive - capable of preventing conception or impregnation
  • contract - a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid
  • contracted - reduced in size or pulled together
  • contractile - capable of contracting or being contracted
  • contracting - becoming infected
  • contraction - the act of decreasing (something) in size or volume or quantity or scope
  • contracture - an abnormal and usually permanent contraction of a muscle
  • contraindication - (medicine) a reason that makes it inadvisable to prescribe a particular drug or employ a particular procedure or treatment
  • contralateral - on or relating to the opposite side (of the body)
  • contrast - the act of distinguishing by comparing differences
  • contrasting - strikingly different; tending to contrast
  • contribute - contribute to some cause
  • control - the activity of managing or exerting control over something
  • controlled - restrained or managed or kept within certain bounds
  • controlling - able to control or determine policy
  • controversial - marked by or capable of arousing controversy
  • contused - injured without breaking the skin
  • contusion - the action of bruising
  • convalesce - get over an illness or shock
  • convalescence - gradual healing (through rest) after sickness or injury
  • convalescent - returning to health after illness or debility
  • convenient - easy to reach
  • conventional - following accepted customs and proprieties
  • converge - come together so as to form a single product
  • convergent - tending to come together from different directions
  • conversation - the use of speech for informal exchange of views or ideas or information etc.
  • conversion - a spiritual enlightenment causing a person to lead a new life
  • convert - a person who has been converted to another religious or political belief
  • converted - spiritually reborn or converted
  • convex - curving or bulging outward
  • convincing - causing one to believe the truth of something
  • convoluted - rolled or coiled together
  • convolution - the action of coiling or twisting or winding together
  • convulse - be overcome with laughter
  • convulsion - a physical disturbance such as an earthquake or upheaval
  • convulsive - affected by involuntary jerky muscular contractions; resembling a spasm
  • cooked - having been prepared for eating by the application of heat
  • cooking - the act of preparing something (as food) by the application of heat
  • cool - marked by calm self-control (especially in trying circumstances); unemotional
  • cooling - the process of becoming cooler; a falling temperature
  • coordinate - of equal importance, rank, or degree
  • coordinated - being dexterous in the use of more than one set of muscle movements
  • coordination - the regulation of diverse elements into an integrated and harmonious operation
  • cope - brick that is laid sideways at the top of a wall
  • copenhagen - the capital and largest city of Denmark; located on the island of Zealand
  • copied - derived by copying something else; especially by following lines seen through a transparent sheet
  • coping - brick that is laid sideways at the top of a wall
  • copper - any of various small butterflies of the family Lycaenidae having coppery wings
  • coprolith - a hard mass of fecal matter
  • copulate - make love
  • copulation - the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur
  • copy - a secondary representation of an original
  • copying - an act of copying
  • cord - a line made of twisted fibers or threads
  • cordon - adornment consisting of an ornamental ribbon or cord
  • cords - cotton trousers made of corduroy cloth
  • core - a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil
  • corium - the deep vascular inner layer of the skin
  • corn - something sentimental or trite
  • cornea - transparent anterior portion of the outer covering of the eye; it covers the lens and iris and is continuous with the sclera
  • corneal - of or related to the cornea
  • cornell - United States businessman who unified the telegraph system in the United States and who in 1865 (with Andrew D. White) founded Cornell University (1807-1874)
  • corner - the intersection of two streets
  • corneum - the outermost layer of the epidermis consisting of dead cells that slough off
  • cornu - (anatomy) any structure that resembles a horn in shape
  • corona - a long cigar with blunt ends
  • coronal - flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes
  • coronary - surrounding like a crown (especially of the blood vessels surrounding the heart)
  • coroner - a public official who investigates by inquest any death not due to natural causes
  • corporate - organized and maintained as a legal corporation
  • corpse - the dead body of a human being
  • corpus - the main part of an organ or other bodily structure
  • corpuscle - either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets
  • correct - free from error; especially conforming to fact or truth
  • corrected - having something undesirable neutralized
  • correction - the act of offering an improvement to replace a mistake; setting right
  • corrective - tending or intended to correct or counteract or restore to a normal condition
  • correctly - in a correct manner
  • corresponding - agreeing in amount, magnitude, or degree
  • corridor - an enclosed passageway; rooms usually open onto it
  • corrode - become destroyed by water, air, or an etching chemical such as an acid
  • corrosive - of a substance, especially a strong acid; capable of destroying or eating away by chemical action
  • corset - a woman's close-fitting foundation garment
  • cortex - the tissue forming the outer layer of an organ or structure in plant or animal
  • cortical - of or relating to a cortex
  • corticosteroid - a steroid hormone produced by the adrenal cortex or synthesized; administered as drugs they reduce swelling and decrease the body's immune response
  • corticosterone - secreted by the adrenal cortex; involved in regulating water and electrolyte balance in the body
  • corticotrophin - a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  • corticotropin - a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  • cortisol - an adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism
  • cortisone - a corticosteroid hormone (trade name Cortone Acetate) normally produced by the adrenal cortex; is converted to hydrocortisone
  • corynebacterium - any species of the genus Corynebacterium
  • coryza - an inflammation of the mucous membrane lining the nose (usually associated with nasal discharge)
  • cosmetic - serving an aesthetic purpose in beautifying the body
  • cost - the total spent for goods or services including money and time and labor
  • costa - a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing)
  • costal - of or relating to or near a rib
  • costive - retarding evacuation of feces
  • costs - pecuniary reimbursement to the winning party for the expenses of litigation
  • cot - a small bed that folds up for storage or transport
  • cottage - a small house with a single story
  • cotton - fabric woven from cotton fibers
  • cotyledon - embryonic leaf in seed-bearing plants
  • cotyloid - of the cup-shaped socket that receives the head of the thigh bone
  • couch - a narrow bed on which a patient lies during psychiatric or psychoanalytic treatment
  • cough - the act of exhaling air suddenly with a noise
  • coughing - the act of exhaling air suddenly with a noise
  • council - a meeting of people for consultation
  • counselling - something that provides direction or advice as to a decision or course of action
  • counsellor - a lawyer who pleads cases in court
  • count - the act of counting
  • counter - indicating opposition or resistance
  • counteract - oppose and mitigate the effects of by contrary actions
  • counteraction - action intended to nullify the effects of some previous action
  • counterirritant - a medicine applied locally to produce superficial inflammation in order to reduce deeper inflammation
  • counterstain - a stain of contrasting color that is used when the principal stain does not show the structure clearly
  • counting - the act of counting
  • country - the territory occupied by a nation
  • countrywide - occurring or extending throughout a country or nation
  • coupling - the act of pairing a male and female for reproductive purposes
  • course - as might be expected
  • court - respectful deference
  • cover - fire that makes it difficult for the enemy to fire on your own individuals or formations
  • covered - overlaid or spread or topped with or enclosed within something; sometimes used as a combining form
  • covering - the act of protecting something by covering it
  • cow - mature female of mammals of which the male is called `bull'
  • cowper - English poet who wrote hymns and poetry about nature (1731-1800)
  • cowpox - a viral disease of cattle causing a mild skin disease affecting the udder; formerly used to inoculate humans against smallpox
  • cows - domesticated bovine animals as a group regardless of sex or age
  • coxa - the ball-and-socket joint between the head of the femur and the acetabulum
  • cpr - an emergency procedure consisting of external cardiac massage and artificial respiration; the first treatment for a person who has collapsed and has no pulse and has stopped breathing; attempts to restore circulation of the blood and prevent death or brain damage due to lack of oxygen
  • cr - a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
  • crab - a stroke of the oar that either misses the water or digs too deeply
  • crack - of the highest quality
  • cracked - informal or slang terms for mentally irregular
  • cracking - very good
  • crackling - the sharp sound of snapping noises
  • cradle - a baby bed with sides and rockers
  • cramp - a strip of metal with ends bent at right angles; used to hold masonry together
  • cramped - constricted in size
  • cranial - of or relating to the cranium which encloses the brain
  • craniometry - the branch of physical anthropology dealing with the study and measurement of dry skulls after removal of its soft parts
  • craniotomy - a surgical opening through the skull
  • cranium - the part of the skull that encloses the brain
  • crash - the act of colliding with something
  • cream - toiletry consisting of any of various substances in the form of a thick liquid that have a soothing and moisturizing effect when applied to the skin
  • create - create by artistic means
  • creatine - an amino acid that does not occur in proteins but is found in the muscle tissue of vertebrates both in the free form and as phosphocreatine; supplies energy for muscle contraction
  • creation - (theology) God's act of bringing the universe into existence
  • cred - credibility among young fashionable urban individuals
  • creep - a pen that is fenced so that young animals can enter but adults cannot
  • creeping - a slow mode of locomotion on hands and knees or dragging the body
  • creeps - a feeling of fear and revulsion
  • crepitation - the sharp sound of snapping noises
  • crescent - resembling the new moon in shape
  • cresol - any of three poisonous colorless isomeric phenols; derived from coal or wood tar; used as a disinfectant
  • crest - a showy growth of e.g. feathers or skin on the head of a bird or other animal
  • cretinism - severe hypothyroidism resulting in physical and mental stunting
  • crew - the men who man a ship or aircraft
  • crib - the cards discarded by players at cribbage
  • crick - English biochemist who (with Watson in 1953) helped discover the helical structure of DNA (1916-2004)
  • crime - (criminal law) an act punishable by law; usually considered an evil act
  • criminal - guilty of crime or serious offense
  • crisis - a crucial stage or turning point in the course of something
  • criterion - the ideal in terms of which something can be judged
  • critical - marked by a tendency to find and call attention to errors and flaws
  • critically - in a critical manner
  • crohn - United States physician who specialized in diseases of the intestines; he was the first to describe regional ileitis which is now known as Crohn's disease (1884-1983)
  • cross - extending or lying across; in a crosswise direction; at right angles to the long axis
  • crossed - placed crosswise
  • crossing - traveling across
  • crotch - the angle formed by the inner sides of the legs where they join the human trunk
  • croup - a disease of infants and young children; harsh coughing and hoarseness and fever and difficult breathing
  • crowded - overfilled or compacted or concentrated
  • crown - the part of a hat (the vertex) that covers the crown of the head
  • crowning - representing a level of the highest possible achievement or attainment
  • cruciate - shaped like a cross
  • crude - not processed or subjected to analysis
  • cruel - (of persons or their actions) able or disposed to inflict pain or suffering
  • crural - of or relating the leg from the knee to the foot
  • crus - the leg from the knee to foot
  • crush - the act of crushing
  • crushed - treated so as to have a permanently wrinkled appearance
  • crushing - physically or spiritually devastating; often used in combination
  • crust - the trait of being rude and impertinent; inclined to take liberties
  • crutch - anything that serves as an expedient
  • cry - a fit of weeping
  • cryaesthesia - hypersensitivity to cold
  • crying - conspicuously and outrageously bad or reprehensible
  • cryosurgery - the use of extreme cold (usually liquid nitrogen) to destroy unwanted tissue (warts or cataracts or skin cancers)
  • crypt - a cellar or vault or underground burial chamber (especially beneath a church)
  • cryptococcosis - a fungal infection characterized by nodular lesions--first in the lungs and spreading to the nervous system
  • cryptorchidism - failure of one or both testes to move into the scrotum as the male fetus develops
  • cryptorchism - failure of one or both testes to move into the scrotum as the male fetus develops
  • crystal - a protective cover that protects the face of a watch
  • crystalline - consisting of or containing or of the nature of crystals
  • cs - a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
  • ct - a method of examining body organs by scanning them with X rays and using a computer to construct a series of cross-sectional scans along a single axis
  • cu - a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
  • cube - a block in the (approximate) shape of a cube
  • cubic - having three dimensions
  • cubital - of or relating to the elbow
  • cubitus - the arm from the elbow to the fingertips
  • cuboid - shaped like a cube
  • cuboidal - shaped like a cube
  • cuff - the lap consisting of a turned-back hem encircling the end of the sleeve or leg
  • cuirass - medieval body armor that covers the chest and back
  • culdoscope - a specialized endoscope for visually examining a woman's pelvic organs
  • culdoscopy - endoscopic examination of a woman's pelvic organs by the insertion of a culdoscope through the vagina
  • culex - type genus of the Culicidae: widespread genus of mosquitoes distinguished by holding the body parallel to the resting surface
  • cultivated - (of land or fields) prepared for raising crops by plowing or fertilizing
  • cultural - denoting or deriving from or distinctive of the ways of living built up by a group of people
  • culturally - with regard to a culture
  • culture - the raising of plants or animals
  • cumulative - increasing by successive addition
  • cuneiform - of or relating to the tarsal bones (or other wedge-shaped bones)
  • cup - a small open container usually used for drinking; usually has a handle
  • cupboard - a small room (or recess) or cabinet used for storage space
  • cupola - a roof in the form of a dome
  • curable - curing or healing is possible
  • curare - a toxic alkaloid found in certain tropical South American trees that is a powerful relaxant for striated muscles
  • curative - tending to cure or restore to health
  • curdled - transformed from a liquid into a soft semisolid or solid mass
  • cure - a medicine or therapy that cures disease or relieve pain
  • cured - (used of hay e.g.) allowed to dry
  • curet - a surgical instrument shaped like a scoop to remove tissue from a bodily cavity
  • curettage - surgery to remove tissue or growths from a bodily cavity (as the uterus) by scraping with a curette
  • curette - a surgical instrument shaped like a scoop to remove tissue from a bodily cavity
  • curettement - surgery to remove tissue or growths from a bodily cavity (as the uterus) by scraping with a curette
  • curie - French chemist (born in Poland) who won two Nobel prizes; one (with her husband and Henri Becquerel) for research on radioactivity and another for her discovery of radium and polonium (1867-1934)
  • curing - the process of becoming hard or solid by cooling or drying or crystallization
  • curled - of hair having curls
  • curling - of hair having curls
  • current - occurring in or belonging to the present time
  • currently - at this time or period; now
  • curtain - hanging cloth used as a blind (especially for a window)
  • curtis - English botanical writer and publisher (1746-1799)
  • curvature - the property possessed by the curving of a line or surface
  • curve - a pitch of a baseball that is thrown with spin so that its path curves as it approach the batter
  • curved - having or marked by a curve or smoothly rounded bend
  • curving - having or marked by a curve or smoothly rounded bend
  • cushing - United States neurologist noted for his study of the brain and pituitary gland and who identified Cushing's syndrome (1869-1939)
  • cushion - a soft bag filled with air or a mass of padding such as feathers or foam rubber etc.
  • cusp - point formed by two intersecting arcs (as from the intrados of a Gothic arch)
  • cuspid - one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars
  • custody - holding by the police
  • customs - money collected under a tariff
  • cut - with parts removed
  • cutaneous - relating to or existing on or affecting the skin
  • cuticle - the dead skin at the base of a fingernail or toenail
  • cutis - a natural protective body covering and site of the sense of touch
  • cutting - suitable for cutting or severing
  • cva - a sudden loss of consciousness resulting when the rupture or occlusion of a blood vessel leads to oxygen lack in the brain
  • cyanide - an extremely poisonous salt of hydrocyanic acid
  • cyanocobalamin - a B vitamin that is used to treat pernicious anemia
  • cyanosis - a bluish discoloration of the skin and mucous membranes; a sign that oxygen in the blood is dangerously diminished (as in carbon monoxide poisoning)
  • cycle - a single complete execution of a periodically repeated phenomenon
  • cyclic - recurring in cycles
  • cyclical - recurring in cycles
  • cycling - the sport of traveling on a bicycle or motorcycle
  • cyclopropane - a colorless flammable gas sometimes used as an inhalation anesthetic
  • cyclothymia - a mild bipolar disorder that persists over a long time
  • cylinder - a cylindrical container for oxygen or compressed air
  • cylindrical - having the form of a cylinder
  • cyst - a closed sac that develops abnormally in some body structure
  • cystic - of or relating to or resembling a cyst
  • cystine - a crystalline amino acid found in proteins (especially keratin); discovered in bladder stones
  • cystitis - inflammation of the urinary bladder and ureters
  • cystocele - hernia in which the urinary bladder protrudes through the wall of the vagina; sometimes occurs after childbirth
  • cytogenetics - the branch of biology that studies the cellular aspects of heredity (especially the chromosomes)
  • cytokine - any of various proteins secreted by cells of the immune system that serve to regulate the immune system
  • cytokinesis - organic process consisting of the division of the cytoplasm of a cell following karyokinesis bringing about the separation into two daughter cells
  • cytological - of or relating to the science of cytology
  • cytologist - a biologist who studies the structure and function of cells
  • cytology - the branch of biology that studies the structure and function of cells
  • cytolysis - pathological breakdown of cells by the destruction of their outer membrane
  • cytomegalovirus - any of a group of herpes viruses that enlarge epithelial cells and can cause birth defects; can affect humans with impaired immunological systems
  • cytopenia - a deficiency of some cellular element of the blood
  • cytoplasm - the protoplasm of a cell excluding the nucleus; is full of proteins that control cell metabolism
  • cytoplasmic - of or relating to cytoplasm
  • cytosine - a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
  • cytotoxic - of or relating to substances that are toxic to cells
  • cytotoxin - any substance that has a toxic effect on cells
  • czech - of or relating to Czechoslovakia or its people or their language

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

D

  • da - an official prosecutor for a judicial district
  • dab - a small quantity of something moist or liquid
  • dacryocystitis - inflammation of the lacrimal sac causing obstruction of the tube draining tears into the nose
  • dactyl - a metrical unit with stressed-unstressed-unstressed syllables
  • dactylomegaly - abnormally large fingers or toes
  • dada - a nihilistic art movement (especially in painting) that flourished in Europe early in the 20th century; based on irrationality and negation of the accepted laws of beauty
  • dah - the longer of the two telegraphic signals used in Morse code
  • daily - occurring or done each day
  • dairy - a farm where dairy products are produced
  • daisy - any of numerous composite plants having flower heads with well-developed ray flowers usually arranged in a single whorl
  • dalton - English chemist and physicist who formulated atomic theory and the law of partial pressures; gave the first description of red-green color blindness (1766-1844)
  • daltonism - dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red
  • damage - the act of damaging something or someone
  • damaged - harmed or injured or spoiled
  • damages - a sum of money paid in compensation for loss or injury
  • damaging - designed or tending to discredit, especially without positive or helpful suggestions
  • damp - slightly wet
  • dance - an artistic form of nonverbal communication
  • dander - a feeling of anger and animosity
  • dandruff - loose scales shed from the scalp
  • dandy - very good
  • danger - a dangerous place
  • dangerous - causing fear or anxiety by threatening great harm
  • dangerously - in a dangerous manner
  • daniel - an Old Testament book that tells of the apocalyptic visions and the experiences of Daniel in the court of Nebuchadnezzar
  • danish - of or relating to or characteristic of Denmark or the Danes
  • dark - not giving performances; closed
  • darkening - becoming dark or darker as from waning light or clouding over
  • darkness - a swarthy complexion
  • data - a collection of facts from which conclusions may be drawn
  • database - an organized body of related information
  • date - sweet edible fruit of the date palm with a single long woody seed
  • dated - bearing a date
  • daughter - a female human offspring
  • david - (Old Testament) the 2nd king of the Israelites; as a young shepherd he fought Goliath (a giant Philistine warrior) and killed him by hitting him in the head with a stone flung from a sling; he united Israel with Jerusalem as its capital; many of the Psalms are attributed to David (circa 1000-962 BC)
  • day - United States writer best known for his autobiographical works (1874-1935)
  • daylight - light during the daytime
  • days - the time during which someone's life continues
  • daytime - the time after sunrise and before sunset while it is light outside
  • dazed - in a state of mental numbness especially as resulting from shock
  • dazzlingly - in a manner or to a degree that dazzles the beholder
  • db - a logarithmic unit of sound intensity; 10 times the logarithm of the ratio of the sound intensity to some reference intensity
  • dds - a doctor's degree in dental surgery
  • ddt - an insecticide that is also toxic to animals and humans; banned in the United States since 1972
  • de - a Mid-Atlantic state; one of the original 13 colonies
  • dead - total
  • deaden - convert (metallic mercury) into a grey powder consisting of minute globules, as by shaking with chalk or fatty oil
  • deadly - (of a disease) having a rapid course and violent effect
  • deaf - lacking or deprive of the sense of hearing wholly or in part
  • deafen - make soundproof
  • deafened - caused to hear poorly or not at all
  • deafness - partial or complete loss of hearing
  • deal - the act of apportioning or distributing something
  • dealing - method or manner of conduct in relation to others
  • deaminate - remove the amino radical (usually by hydrolysis) from an amino compound; to perform deamination
  • deamination - removal of the amino radical from an amino acid or other amino compound
  • death - the act of killing
  • debate - the formal presentation of and opposition to a stated proposition (usually followed by a vote)
  • debilitate - make weak
  • debilitated - lacking strength or vigor
  • debilitating - impairing the strength and vitality
  • debility - the state of being weak in health or body (especially from old age)
  • debridement - surgical removal of foreign material and dead tissue from a wound in order to prevent infection and promote healing
  • debris - the remains of something that has been destroyed or broken up
  • decadron - a corticosteroid drug (trade names Decadron or Dexamethasone Intensol or Dexone or Hexadrol or Oradexon) used to treat allergies or inflammation
  • decalcification - loss of calcium from bones or teeth
  • decapitation - killing by cutting off the head
  • decarboxylase - any of the enzymes that hydrolize the carboxyl group
  • decay - the organic phenomenon of rotting
  • decayed - damaged by decay; hence unsound and useless
  • decibel - a logarithmic unit of sound intensity; 10 times the logarithm of the ratio of the sound intensity to some reference intensity
  • decide - reach, make, or come to a decision about something
  • decided - recognizable; marked
  • deciding - having the power or quality of deciding
  • decidua - the epithelial tissue of the endometrium
  • deciduous - (of plants and shrubs) shedding foliage at the end of the growing season
  • decigram - 1/10 gram
  • deciliter - a metric unit of volume equal to one tenth of a liter
  • decilitre - a metric unit of volume equal to one tenth of a liter
  • decimeter - a metric unit of length equal to one tenth of a meter
  • decimetre - a metric unit of length equal to one tenth of a meter
  • decision - the act of making up your mind about something
  • declared - made known or openly avowed
  • decline - change toward something smaller or lower
  • decompose - separate (substances) into constituent elements or parts
  • decomposition - the analysis of a vector field
  • decompression - relieving pressure
  • decongestant - a drug that decreases pulmonary congestion
  • decontamination - the removal of contaminants
  • decortication - removal of the outer covering of an organ or part
  • decrease - the act of decreasing or reducing something
  • decreased - made less in size or amount or degree
  • decreasing - becoming less or smaller
  • decubitus - a reclining position (as in a bed)
  • decussation - an intersection or crossing of two tracts in the form of the letter X
  • ded - a doctor's degree in education
  • dedicated - devoted to a cause or ideal or purpose
  • deep - exhibiting great cunning usually with secrecy
  • deeply - to a great depth
  • deer - distinguished from Bovidae by the male's having solid deciduous antlers
  • defecate - have a bowel movement
  • defecation - the elimination of fecal waste through the anus
  • defect - a failing or deficiency
  • defective - markedly subnormal in structure or function or intelligence or behavior
  • defence - protection from harm
  • defend - argue or speak in defense of
  • defendant - a person or institution against whom an action is brought in a court of law; the person being sued or accused
  • defending - attempting to or designed to prevent an opponent from winning or scoring
  • defense - protection from harm
  • defensive - intended or appropriate for defending against or deterring aggression or attack
  • deferent - showing deference
  • defervescence - abatement of a fever as indicated by a reduction in body temperature
  • defibrillation - treatment by stopping fibrillation of heart muscles (usually by electric shock delivered by a defibrillator)
  • defibrillator - an electronic device that administers an electric shock of preset voltage to the heart through the chest wall in an attempt to restore the normal rhythm of the heart during ventricular fibrillation
  • deficiency - lack of an adequate quantity or number
  • deficient - inadequate in amount or degree
  • deficit - the property of being an amount by which something is less than expected or required
  • define - give a definition for the meaning of a word
  • defined - clearly characterized or delimited
  • definite - known for certain
  • deflation - the act of letting the air out of something
  • deflection - the property of being bent or deflected
  • defloration - the act of depriving a woman of her virginity (especially by rupturing the hymen through sexual intercourse)
  • deformation - alteration in the shape or dimensions of an object as a result of the application of stress to it
  • deformed - so badly formed or out of shape as to be ugly
  • deformity - an affliction in which some part of the body is misshapen or malformed
  • degenerate - unrestrained by convention or morality
  • degeneration - passing from a more complex to a simpler biological form
  • degenerative - (of illness) marked by gradual deterioration of organs and cells along with loss of function
  • deglutition - the act of swallowing
  • degree - a position on a scale of intensity or amount or quality
  • dehiscence - (biology) release of material by splitting open of an organ or tissue; the natural bursting open at maturity of a fruit or other reproductive body to release seeds or spores or the bursting open of a surgically closed wound
  • dehydrate - remove water from
  • dehydrated - suffering from excessive loss of water from the body
  • dehydration - the process of extracting moisture
  • delay - the act of delaying; inactivity resulting in something being put off until a later time
  • delayed - caused to be slower or later
  • deleterious - harmful to living things
  • delf - an excavation; usually a quarry or mine
  • delhi - a city in north central India
  • deli - a shop selling ready-to-eat food products
  • deliberate - by conscious design or purpose
  • deliberately - with intention; in an intentional manner
  • delicate - exquisitely fine and subtle and pleasing; susceptible to injury
  • delirious - marked by uncontrolled excitement or emotion
  • delirium - a usually brief state of excitement and mental confusion often accompanied by hallucinations
  • deliver - deliver (a speech, oration, or idea)
  • delivery - the act of delivering a child
  • delta - the 4th letter of the Greek alphabet
  • deltoid - of a leaf shape; suggesting a capital delta, with a point at the apex
  • delusion - the act of deluding; deception by creating illusory ideas
  • delusional - suffering from or characterized by delusions
  • demand - the act of demanding
  • demanding - requiring more than usually expected or thought due; especially great patience and effort and skill
  • dementia - mental deterioration of organic or functional origin
  • demographic - of or relating to demography
  • demography - the branch of sociology that studies the characteristics of human populations
  • demonstrate - march in protest; take part in a demonstration
  • demulcent - having a softening or soothing effect especially to the skin
  • demyelination - loss of the myelin covering of some nerve fibers resulting in their impaired function
  • den - a room that is comfortable and secluded
  • denatured - changed in nature or natural quality
  • dendrite - short fiber that conducts toward the cell body of the neuron
  • dendritic - (neuroscience) of or relating to or resembling a dendrite
  • dengue - an infectious disease of the tropics transmitted by mosquitoes and characterized by rash and aching head and joints
  • denial - the act of asserting that something alleged is not true
  • denmark - a constitutional monarchy in northern Europe; consists of the mainland of Jutland and many islands between the North Sea and the Baltic Sea
  • dense - slow to learn or understand; lacking intellectual acuity
  • density - the amount per unit size
  • dent - an impression in a surface (as made by a blow)
  • dental - of or relating to the teeth
  • dentin - bone (calcified tissue) surrounding the pulp cavity of a tooth
  • dentine - bone (calcified tissue) surrounding the pulp cavity of a tooth
  • dentist - a person qualified to practice dentistry
  • dentistry - the branch of medicine dealing with the anatomy and development and diseases of the teeth
  • dentition - the kind and number and arrangement of teeth (collectively) in a person or animal
  • denture - a dental appliance that artificially replaces missing teeth
  • deodorant - a toiletry applied to the skin in order to mask unpleasant odors
  • deoxygenate - remove oxygen from (water)
  • department - a specialized sphere of knowledge
  • dependant - addicted to a drug
  • dependence - lack of independence or self-sufficiency
  • dependency - a geographical area politically controlled by a distant country
  • dependent - addicted to a drug
  • depersonalisation - representing a human being as a physical thing deprived of personal qualities or individuality
  • depersonalization - representing a human being as a physical thing deprived of personal qualities or individuality
  • depilation - the act of removing hair (as from an animal skin)
  • depilatory - able to remove hair or render hairless
  • depletion - the act of decreasing something markedly
  • deposit - the act of putting something somewhere
  • depressant - capable of depressing physiological or psychological activity or response by a chemical agent
  • depressed - having the central portion lower than the margin
  • depression - pushing down
  • depressive - causing or suggestive of sorrow or gloom
  • depressor - a device used by physician to press a part down or aside
  • deprivation - act of depriving someone of food or money or rights
  • deprived - marked by deprivation especially of the necessities of life or healthful environmental influences
  • depth - degree of psychological or intellectual profundity
  • derangement - a state of mental disturbance and disorientation
  • derivative - resulting from or employing derivation
  • derive - develop or evolve from a latent or potential state
  • derived - formed or developed from something else; not original
  • derma - the deep vascular inner layer of the skin
  • dermal - of or relating to or located in the dermis
  • dermatitis - inflammation of the skin; skin becomes itchy and may develop blisters
  • dermatological - of or relating to or practicing dermatology
  • dermatologist - a doctor who specializes in the physiology and pathology of the skin
  • dermatology - the branch of medicine dealing with the skin and its diseases
  • dermatome - a surgical instrument used to cut very thin slices of skin
  • dermatomycosis - fungal infection of the skin (especially of moist parts covered by clothing)
  • dermatomyositis - myositis characterized by weakness of limb and neck muscles and much muscle pain and selling accompanied by skin rash affecting cheeks and eyelids and neck and chest and limbs; progression and severity vary among individuals
  • dermatophytosis - fungal infection of the skin (especially of moist parts covered by clothing)
  • dermatosis - disorder involving lesions or eruptions of the skin (in which there is usually no inflammation)
  • dermis - the deep vascular inner layer of the skin
  • des - synthetic nonsteroid with the properties of estrogen; formerly used to treat menstrual problems but was found to be associated with vaginal cancers in the daughters of women so treated during pregnancy
  • descendants - all of the offspring of a given progenitor
  • descending - coming down or downward
  • describe - give a description of
  • described - represented in words especially with sharpness and detail
  • description - sort or variety
  • descriptive - describing the structure of a language
  • desensitisation - the process of reducing sensitivity
  • desensitise - make insensitive
  • desensitising - making less susceptible or sensitive to either physical or emotional stimuli
  • desensitization - the process of reducing sensitivity
  • desensitize - make insensitive
  • design - the act of working out the form of something (as by making a sketch or outline or plan)
  • designed - done or made or performed with purpose and intent
  • designer - a person who devises plots or intrigues
  • desirable - worth having or seeking or achieving
  • desire - an inclination to want things
  • desired - greatly desired
  • desk - a piece of furniture with a writing surface and usually drawers or other compartments
  • despatch - the act of sending off something
  • despite - contemptuous disregard
  • desquamate - peel off in scales
  • desquamation - loss of bits of outer skin by peeling or shedding or coming off in scales
  • destroy - put to death
  • destroyed - spoiled or ruined or demolished
  • destruction - the termination of something by causing so much damage to it that it cannot be repaired or no longer exists
  • destructive - causing destruction or much damage
  • detach - cause to become detached or separated; take off
  • detached - used of buildings; standing apart from others
  • detachment - the act of releasing from an attachment or connection
  • detail - an isolated fact that is considered separately from the whole
  • detailed - developed or executed with care and in minute detail
  • details - true confidential information
  • detect - discover or determine the existence, presence, or fact of
  • detected - perceived with the mind
  • detecting - a police investigation to determine the perpetrator
  • detection - the act of detecting something; catching sight of something
  • detergent - having cleansing power
  • deteriorate - become worse or disintegrate
  • deterioration - process of changing to an inferior state
  • determination - the act of determining the properties of something
  • determine - fix conclusively or authoritatively
  • determined - having been learned or found or determined especially by investigation
  • determining - having the power or quality of deciding
  • deterrent - tending to deter
  • detox - the hospital ward or clinic in which patients are detoxified
  • detoxification - treatment for poisoning by neutralizing the toxic properties (normally a function of the liver)
  • detrition - effort expended in moving one object over another with pressure
  • detritus - loose material (stone fragments and silt etc) that is worn away from rocks
  • detroit - the largest city in Michigan and a major Great Lakes port; center of the United States automobile industry; located in southeastern Michigan on the Detroit river across from Windsor
  • detumescence - diminution of swelling; the subsidence of anything swollen
  • deuteranopia - dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red
  • develop - expand in the form of a series
  • developed - being changed over time so as to be e.g. stronger or more complete or more useful
  • developing - relating to societies in which capital needed to industrialize is in short supply
  • development - act of improving by expanding or enlarging or refining
  • developmental - of or relating to or constituting development
  • deviance - deviate behavior
  • deviation - deviate behavior
  • device - any clever maneuver
  • devices - an inclination or desire; used in the plural in the phrase `left to your own devices'
  • dexamethasone - a corticosteroid drug (trade names Decadron or Dexamethasone Intensol or Dexone or Hexadrol or Oradexon) used to treat allergies or inflammation
  • dextrocardia - abnormal condition where the heart is located toward the right side of the chest
  • dextrose - an isomer of glucose that is found in honey and sweet fruits
  • dia - an intelligence agency of the United States in the Department of Defense; is responsible for providing intelligence in support of military planning and operations and weapons acquisition
  • diabetes - any of several metabolic disorders marked by excessive urination and persistent thirst
  • diabetic - suffering from diabetes
  • diagnose - determine or distinguish the nature of a problem or an illness through a diagnostic analysis
  • diagnosing - identifying the nature or cause of some phenomenon
  • diagnosis - identifying the nature or cause of some phenomenon
  • diagnostic - characteristic or indicative of e.g. a disease
  • diagonally - in a diagonal manner
  • diagram - a drawing intended to explain how something works; a drawing showing the relation between the parts
  • dialyse - separate by dialysis
  • dialysis - separation of substances in solution by means of their unequal diffusion through semipermeable membranes
  • diameter - the length of a straight line passing through the center of a circle and connecting two points on the circumference
  • diamine - any organic compound containing two amino groups
  • diapedesis - passage of blood cells (especially white blood cells) through intact capillary walls and into the surrounding tissue
  • diaper - garment consisting of a folded cloth drawn up between the legs and fastened at the waist; worn by infants to catch excrement
  • diaphoresis - the process of the sweat glands of the skin secreting a salty fluid
  • diaphoretic - inducing perspiration
  • diaphragm - a mechanical device in a camera that controls size of aperture of the lens
  • diaphyseal - relating to the diaphysis of a bone
  • diaphysis - the main (mid) section of a long bone
  • diarrhea - frequent and watery bowel movements; can be a symptom of infection or food poisoning or colitis or a gastrointestinal tumor
  • diarrhoea - frequent and watery bowel movements; can be a symptom of infection or food poisoning or colitis or a gastrointestinal tumor
  • diarrhoeal - of or relating to diarrhea
  • diarthrosis - a joint so articulated as to move freely
  • diastasis - separation of an epiphysis from the long bone to which it is normally attached without fracture of the bone
  • diastema - a gap or vacant space between two teeth
  • diastole - the widening of the chambers of the heart between two contractions when the chambers fill with blood
  • diastolic - of or relating to a diastole or happening during a diastole
  • diathermy - a method of physical therapy that involves generating local heat in body tissues by high-frequency electromagnetic currents
  • diathesis - constitutional predisposition to a particular disease or abnormality
  • diazepam - a tranquilizer (trade name Valium) used to relieve anxiety and relax muscles; acts by enhancing the inhibitory actions of the neurotransmitter GABA; can also be used as an anticonvulsant drug in cases of nerve agent poisoning
  • diazoxide - vasodilator (trade name Hyperstat) used to treat severe hypertension
  • dichlorodiphenyltrichloroethane - an insecticide that is also toxic to animals and humans; banned in the United States since 1972
  • dichromatism - a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision)
  • dictionary - a reference book containing an alphabetical list of words with information about them
  • die - a device used for shaping metal
  • diencephalon - the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon
  • diet - the act of restricting your food intake (or your intake of particular foods)
  • dietary - of or relating to the diet
  • dietetic - of or relating to the diet
  • dietetics - the scientific study of food preparation and intake
  • dieting - the act of restricting your food intake (or your intake of particular foods)
  • dietitian - a specialist in the study of nutrition
  • difference - the quality of being unlike or dissimilar
  • different - differing from all others; not ordinary
  • differential - relating to or showing a difference
  • differentiation - the mathematical process of obtaining the derivative of a function
  • differently - in another and different manner
  • difficult - not easy; requiring great physical or mental effort to accomplish or comprehend or endure
  • difficulty - the quality of being difficult
  • diffuse - spread out; not concentrated in one place
  • diffusion - the spread of social institutions (and myths and skills) from one society to another
  • digest - a periodical that summarizes the news
  • digested - capable of undergoing digestion
  • digestible - capable of being converted into assimilable condition in the alimentary canal
  • digestion - learning and coming to understand ideas and information
  • digestive - relating to or having the power to cause or promote digestion
  • digit - a finger or toe in human beings or corresponding body part in other vertebrates
  • digital - of a circuit or device that represents magnitudes in digits
  • digitalin - a powerful cardiac stimulant obtained from foxglove
  • digitalis - a powerful cardiac stimulant obtained from foxglove
  • digitalise - put into digital form, as for use in a computer
  • digitalize - administer digitalis such that the patient benefits maximally without getting adverse effects
  • digitoxin - digitalis preparation used to treat congestive heart failure or cardiac arrhythmia
  • digoxin - digitalis preparation (trade name Lanoxin) used to treat congestive heart failure or cardiac arrhythmia; helps the heart beat more forcefully
  • digs - temporary living quarters
  • dilatation - the state of being stretched beyond normal dimensions
  • dilate - become wider
  • dilated - made wider or larger in all dimensions
  • dilation - the act of expanding an aperture
  • dilator - a surgical instrument that is used to dilate or distend an opening or an organ
  • diltiazem - a calcium blocker (trade name Cardizem) used in treating hypertension or angina or heart failure
  • diluent - a diluting agent
  • dilute - reduced in strength or concentration or quality or purity
  • diluted - reduced in strength or concentration or quality or purity
  • dilution - weakening (reducing the concentration) by the addition of water or a thinner
  • dim - lacking in light; not bright or harsh
  • dimenhydrinate - antihistamine and antiemetic (trade name Dramamine) used to treat motion sickness
  • diminished - (of musical intervals) reduction by a semitone of any perfect or minor musical interval
  • din - the act of making a noisy disturbance
  • diopter - a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists
  • dioptre - a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists
  • dioxide - an oxide containing two atoms of oxygen in the molecule
  • dioxin - any of several toxic or carcinogenic hydrocarbons that occur as impurities in herbicides
  • dip - a gymnastic exercise on the parallel bars in which the body is lowered and raised by bending and straightening the arms
  • diphtheria - acute contagious infection caused by the bacterium Corynebacterium diphtheriae; marked by the formation of a false membrane in the throat and other air passages causing difficulty in breathing
  • diplegia - paralysis of corresponding parts on both sides of the body
  • diplococcus - Gram-positive bacteria usually occurring in pairs
  • diploid - of a cell or organism having two sets of chromosomes or twice the haploid number
  • diploma - a document certifying the successful completion of a course of study
  • diplopia - visual impairment in which an object is seen as two objects
  • dipsomania - an intense persistent desire to drink alcoholic beverages to excess
  • direct - lacking compromising or mitigating elements; exact
  • directed - manageable by a supervising agent
  • directing - showing the way by conducting or leading; imposing direction on
  • direction - a general course along which something has a tendency to develop
  • directional - relating to or indicating directions in space
  • directly - without deviation
  • director - someone who controls resources and expenditures
  • dirt - (of roads) not leveled or drained; unsuitable for all year travel
  • dirty - unpleasantly stormy
  • dis - god of the underworld; counterpart of Greek Pluto
  • disability - the condition of being unable to perform as a consequence of physical or mental unfitness
  • disable - injure permanently
  • disabled - markedly unable to function as a consequence of injury or illness
  • disablement - the condition of being unable to perform as a consequence of physical or mental unfitness
  • disabling - depriving of legal right; rendering legally disqualified
  • disadvantage - the quality of having an inferior or less favorable position
  • disappear - get lost, as without warning or explanation
  • disappearance - the act of leaving secretly or without explanation
  • disappearing - quickly going away and passing out of sight
  • disappointing - not up to expectations
  • disaster - an act that has disastrous consequences
  • disc - a flat circular plate
  • discarded - thrown away
  • discern - detect with the senses
  • discharge - the act of discharging a gun
  • discharged - having lost your job
  • disciplinary - relating to a specific field of academic study
  • discipline - training to improve strength or self-control
  • discolor - change color, often in an undesired manner
  • discoloration - the act of changing the natural color of something by making it duller or dingier or unnatural or faded
  • discolour - change color, often in an undesired manner
  • discoloured - having the color spoiled with spots or streaks
  • discomfort - an uncomfortable feeling of mental painfulness or distress
  • disconnection - the act of breaking a connection
  • discouraged - lacking in resolution
  • discover - make a discovery
  • discovered - no longer concealed; uncovered as by opening a curtain; `discovered' is archaic and primarily a theater term
  • discrete - constituting a separate entity or part
  • discuss - speak with others about (something); talk (something) over in detail; have a discussion
  • discussion - an extended communication (often interactive) dealing with some particular topic
  • disease - an impairment of health or a condition of abnormal functioning
  • diseased - caused by or altered by or manifesting disease or pathology
  • disfigure - mar or spoil the appearance of
  • disfigured - having the appearance spoiled
  • disfigurement - an appearance that has been spoiled or is misshapen
  • disgusting - highly offensive; arousing aversion or disgust
  • dish - a piece of dishware normally used as a container for holding or serving food
  • disinfect - destroy microorganisms or pathogens by cleansing
  • disinfectant - preventing infection by inhibiting the growth or action of microorganisms
  • disinfection - treatment to destroy harmful microorganisms
  • disinfest - rid of vermin
  • disinfestation - the activity of getting rid of vermin
  • disintegrate - break into parts or components or lose cohesion or unity
  • disintegration - total destruction
  • dislike - a feeling of aversion or antipathy
  • dislocate - put out of its usual place, position, or relationship
  • dislocated - separated at the joint
  • dislocation - the act of disrupting an established order so it fails to continue
  • dismember - separate the limbs from the body
  • dismemberment - the removal of limbs; being cut to pieces
  • disorder - a disturbance of the peace or of public order
  • disordered - not arranged in order
  • disorganised - lacking order or methodical arrangement or function
  • disorientation - confusion (usually transient) about where you are and how to proceed; uncertainty as to direction
  • dispensary - clinic where medicine and medical supplies are dispensed
  • dispense - grant a dispensation; grant an exemption
  • dispenser - a container so designed that the contents can be used in prescribed amounts
  • disperse - move away from each other
  • dispersed - distributed or spread over a considerable extent
  • displace - force to move
  • displacement - act of removing from office or employment
  • display - something shown to the public
  • disposable - designed to be disposed of after use
  • disposal - the act or means of getting rid of something
  • disposition - your usual mood
  • disproportion - lack of proportion; imbalance among the parts of something
  • dispute - coming into conflict with
  • disrupted - marked by breaks or gaps
  • disruptive - characterized by unrest or disorder or insubordination
  • dissatisfaction - the feeling of being displeased and discontent
  • dissect - cut open or cut apart
  • dissection - cutting so as to separate into pieces
  • dissemination - the property of being diffused or dispersed
  • dissociate - to undergo a reversible or temporary breakdown of a molecule into simpler molecules or atoms
  • dissociation - the act of removing from association
  • dissociative - tending to produce dissociation
  • dissolve - (film) a gradual transition from one scene to the next; the next scene is gradually superimposed as the former scene fades out
  • dissolved - (of solid matter) reduced to a liquid form
  • dissolving - causing to dissolve
  • distal - situated farthest from point of attachment or origin, as of a limb or bone
  • distally - far from the center
  • distance - the property created by the space between two objects or points
  • distended - abnormally expanded or increased in size; (`swollen' is sometimes used in combination)
  • distension - the act of expanding by pressure from within
  • distil - give off (a liquid)
  • distillation - the process of purifying a liquid by boiling it and condensing its vapors
  • distinct - recognizable; marked
  • distinctive - of a feature that helps to distinguish a person or thing
  • distinguish - mark as different
  • distinguished - set apart from other such things
  • distinguishing - serving to distinguish or identify a species or group
  • distort - alter the shape of (something) by stress
  • distorted - having an intended meaning altered or misrepresented
  • distortion - the mistake of misrepresenting the facts
  • distraction - the act of distracting; drawing someone's attention away from something
  • distress - the seizure and holding of property as security for payment of a debt or satisfaction of a claim
  • distressed - facing or experiencing financial trouble or difficulty
  • distressing - causing distress or worry or anxiety
  • distribution - the act of distributing or spreading or apportioning
  • district - a region marked off for administrative or other purposes
  • disturb - damage as if by shaking or jarring
  • disturbance - the act of disturbing something or someone; setting something in motion
  • disturbed - emotionally unstable and having difficulty coping with personal relationships
  • disturbing - causing distress or worry or anxiety
  • disulfiram - a drug (trade name Antabuse) used in the treatment of alcoholism; causes nausea and vomiting if alcohol is ingested
  • diuresis - increased secretion of urine; if not due to increased liquid intake or to the action of a diuretic drug it can be a symptom of diabetes mellitus
  • diuretic - any substance that tends to increase the flow of urine
  • diurnal - having a daily cycle or occurring every day
  • divarication - branching at a wide angle
  • dive - a steep nose-down descent by an aircraft
  • diver - someone who dives (into water)
  • divergence - the act of moving away in different direction from a common point
  • divergent - tending to move apart in different directions
  • divert - send on a course or in a direction different from the planned or intended one
  • diverticulitis - inflammation of a diverticulum in the digestive tract (especially the colon); characterized by painful abdominal cramping and fever and constipation
  • diverticulosis - presence of multiple diverticula in the walls of the colon
  • diverticulum - a herniation through the muscular wall of a tubular organ (especially the colon)
  • divide - a serious disagreement between two groups of people (typically producing tension or hostility)
  • divided - distributed in portions (often equal) on the basis of a plan or purpose
  • dividing - serving simply to separate or partition
  • division - the act or process of dividing
  • divorce - the legal dissolution of a marriage
  • dizygotic - derived from two separately fertilized eggs
  • dizziness - a reeling sensation; a feeling that you are about to fall
  • dizzy - having or causing a whirling sensation; liable to falling
  • dj - a person who announces and plays popular recorded music
  • dl - a metric unit of volume equal to one tenth of a liter
  • dle - a chronic skin disease occurring primarily in women between the ages of 20 and 40; characterized by an eruption of red lesions over the cheeks and bridge of the nose
  • dm - a metric unit of length equal to one tenth of a meter
  • dmd - a doctor's degree in dental medicine
  • dna - (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information
  • do - the syllable naming the first (tonic) note of any major scale in solmization
  • doctor - children take the roles of physician or patient or nurse and pretend they are at the physician's office
  • document - anything serving as a representation of a person's thinking by means of symbolic marks
  • documentation - documentary validation
  • documented - furnished with or supported by documents
  • dog - a member of the genus Canis (probably descended from the common wolf) that has been domesticated by man since prehistoric times; occurs in many breeds
  • dolichocephalic - having a relatively long head with a cephalic index of under 75
  • dolichocephaly - the quality of being dolichocephalic
  • dolor - (poetry) painful grief
  • dome - a hemispherical roof
  • domestic - produced in a particular country
  • domiciliary - of or relating to or provided in a domicile
  • dominance - the organic phenomenon in which one of a pair of alleles present in a genotype is expressed in the phenotype and the other allele of the pair is not
  • dominant - exercising influence or control
  • dominated - controlled or ruled by superior authority or power
  • domino - a small rectangular block used in playing the game of dominoes; the face of each block has two equal areas that can bear 0 to 6 dots
  • donate - give to a charity or good cause
  • donated - given freely especially to a cause or fund
  • donation - act of giving in common with others for a common purpose especially to a charity
  • done - cooked until ready to serve
  • donor - person who makes a gift of property
  • door - a swinging or sliding barrier that will close the entrance to a room or building or vehicle
  • dopa - amino acid that is formed in the liver and converted into dopamine in the brain
  • dopamine - a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension
  • doppler - Austrian physicist famous for his discovery of the Doppler effect (1803-1853)
  • dormant - inactive but capable of becoming active
  • dorsal - belonging to or on or near the back or upper surface of an animal or organ or part
  • dorsiflexion - the act of bending backward (of the body or a body part)
  • dorsoventral - extending from the back to the belly
  • dorsum - the back of the body of a vertebrate or any analogous surface (as the upper or outer surface of an organ or appendage or part)
  • dosage - the quantity of an active agent (substance or radiation) taken in or absorbed at any one time
  • dose - a measured portion of medicine taken at any one time
  • dosimeter - a measuring instrument for measuring doses of ionizing radiation (X-rays or radioactivity)
  • dosimetry - measuring the dose of radiation emitted by a radioactive source
  • dot - the shorter of the two telegraphic signals used in Morse code
  • double - having two meanings with intent to deceive
  • doubly - to double the degree
  • doubt - uncertainty about the truth or factuality of existence of something
  • doubtful - fraught with uncertainty or doubt
  • douche - irrigation with a jet of water or medicated solution into or around a body part (especially the vagina) to treat infections or cleanse from odorous contents
  • douglas - United States politician who proposed that individual territories be allowed to decide whether they would have slavery; he engaged in a famous series of debates with Abraham Lincoln (1813-1861)
  • down - not functioning (temporarily or permanently)
  • downstairs - on or of lower floors of a building
  • downward - extending or moving from a higher to a lower place
  • downwards - spatially or metaphorically from a higher to a lower level or position
  • doxepin - a tricyclic antidepressant (trade names Adapin and Sinequan) with numerous side effects (dry mouth and sedation and gastrointestinal disturbances)
  • doxycycline - an antibiotic derived from tetracycline that is effective against many infections
  • doze - a light fitful sleep
  • dozens - a large number or amount
  • dozy - half asleep
  • drachm - a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce
  • dracunculiasis - a painful and debilitating infestation contracted by drinking stagnant water contaminated with Guinea worm larvae that can mature inside a human's abdomen until the worm emerges through a painful blister in the person's skin
  • dracunculus - type genus of the family Dracunculidae
  • dragee - pill that is a sugar-coated medicated candy
  • drain - emptying something accomplished by allowing liquid to run out of it
  • drainage - emptying something accomplished by allowing liquid to run out of it
  • drained - emptied or exhausted of (as by drawing off e.g. water or other liquid)
  • draining - having a debilitating effect
  • dramatic - suitable to or characteristic of drama
  • drape - a sterile covering arranged over a patient's body during a medical examination or during surgery in order to reduce the possibility of contamination
  • draw - the act of drawing or hauling something
  • drawing - act of getting or draining something such as electricity or a liquid from a source
  • drawn - having the curtains or draperies closed or pulled shut
  • dream - a state of mind characterized by abstraction and release from reality
  • dreamer - someone who is dreaming
  • dreaming - a series of mental images and emotions occurring during sleep
  • dresden - a city in southeastern Germany on the Elbe River; it was almost totally destroyed by British air raids in 1945
  • dress - (of an occasion) requiring formal clothes
  • dressed - dressed in fancy or formal clothing
  • dresser - a cabinet with shelves
  • dressing - the act of applying a bandage
  • dribble - the propulsion of a ball by repeated taps or kicks
  • dribbling - the propulsion of a ball by repeated taps or kicks
  • dried - preserved by removing natural moisture
  • drier - an appliance that removes moisture
  • drill - (military) the training of soldiers to march (as in ceremonial parades) or to perform the manual of arms
  • drilled - trained in a skill by repetitious practice
  • drink - the act of drinking alcoholic beverages to excess
  • drinker - a person who drinks alcoholic beverages (especially to excess)
  • drinking - the act of consuming liquids
  • drip - (architecture) a projection from a cornice or sill designed to protect the area below from rainwater (as over a window or doorway)
  • dripping - having liquid falling in drops
  • drive - the act of applying force to propel something
  • driven - urged or forced to action through moral pressure
  • driver - a golf club (a wood) with a near vertical face that is used for hitting long shots from the tee
  • driving - having the power of driving or impelling
  • drooping - hanging down (as from exhaustion or weakness)
  • drop - the act of dropping something
  • droplet - a tiny drop
  • dropped - (used of a mammal) born
  • dropper - pipet consisting of a small tube with a vacuum bulb at one end for drawing liquid in and releasing it a drop at a time
  • dropsy - swelling from excessive accumulation of serous fluid in tissue
  • drown - die from being submerged in water, getting water into the lungs, and asphyxiating
  • drowsiness - a very sleepy state
  • drowsy - showing lack of attention or boredom
  • drug - a substance that is used as a medicine or narcotic
  • drunk - stupefied or excited by a chemical substance (especially alcohol)
  • dry - practicing complete abstinence from alcoholic beverages
  • dryness - the condition of not containing or being covered by a liquid (especially water)
  • ds - an honorary degree in science
  • dts - acute delirium caused by alcohol poisoning
  • dual - a grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural)
  • dublin - capital and largest city and major port of the Irish Free State
  • duct - an enclosed conduit for a fluid
  • ductless - not having a duct
  • ductule - a very small duct
  • due - owed and payable immediately or on demand
  • dull - (of business) not active or brisk
  • dulled - deprived of color
  • dullness - without sharpness or clearness of edge or point
  • dumb - unable to speak because of hereditary deafness
  • dumbness - the quality of being mentally slow and limited
  • dummy - having the appearance of being real but lacking capacity to function
  • dumping - selling goods abroad at a price below that charged in the domestic market
  • duo - a musical composition for two performers
  • duodenal - in or relating to the duodenum
  • duodenum - the part of the small intestine between the stomach and the jejunum
  • duplex - allowing communication in opposite directions simultaneously
  • dura - the outermost (and toughest) of the 3 meninges
  • dural - of or relating to the dura mater
  • duration - continuance in time
  • dust - fine powdery material such as dry earth or pollen that can be blown about in the air
  • dutch - of or relating to the Netherlands or its people or culture
  • duty - work that you are obliged to perform for moral or legal reasons
  • dwarfism - a genetic abnormality resulting in short stature
  • dye - a usually soluble substance for staining or coloring e.g. fabrics or hair
  • dying - in or associated with the process of passing from life or ceasing to be
  • dynamic - characterized by action or forcefulness or force of personality
  • dynamometer - measuring instrument designed to measure power
  • dysarthria - impaired articulatory ability resulting from defects in the peripheral motor nerves or in the speech musculature
  • dyschezia - difficulty in defecating (usually as a consequence of long continued voluntary suppression of the urge to defecate)
  • dyscrasia - an abnormal or physiologically unbalanced state of the body
  • dysentery - an infection of the intestines marked by severe diarrhea
  • dysfunction - (medicine) any disturbance in the function of an organ or body part
  • dysfunctional - (of a trait or condition) failing to serve an adjustive purpose
  • dysgenesis - infertility between hybrids
  • dysgraphia - impaired ability to learn to write
  • dyskinesia - abnormality in performing voluntary muscle movements
  • dyslexia - impaired ability to learn to read
  • dyslexic - of or relating to or symptomatic of dyslexia
  • dyslogia - impaired ability to express ideas verbally; usually resulting from difficulties of reasoning (as in feeblemindedness or certain psychoses)
  • dyspepsia - a disorder of digestive function characterized by discomfort or heartburn or nausea
  • dyspeptic - suffering from dyspepsia
  • dysphagia - condition in which swallowing is difficult or painful
  • dysphasia - an impairment of language (especially speech production) that is usually due to brain damage
  • dysphonia - speech disorder attributable to a disorder of phonation
  • dysplasia - abnormal development (of organs or cells) or an abnormal structure resulting from such growth
  • dyspnoea - difficult or labored respiration
  • dyspnoeic - not breathing or able to breathe except with difficulty
  • dyssynergia - inability to coordinate voluntary muscle movements; unsteady movements and staggering gait
  • dystrophy - any degenerative disorder resulting from inadequate or faulty nutrition
  • dysuria - painful or difficult urination

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

E

  • each - (used of count nouns) every one considered individually
  • eager - having or showing keen interest or intense desire or impatient expectancy
  • ear - the sense organ for hearing and equilibrium
  • earache - an ache localized in the middle or inner ear
  • eardrum - the membrane in the ear that vibrates to sound
  • earlier - (comparative and superlative of `early') more early than; most early
  • early - at or near the beginning of a period of time or course of events or before the usual or expected time
  • earth - the abode of mortals (as contrasted with heaven or hell)
  • earwax - a soft yellow wax secreted by glands in the ear canal
  • ease - freedom from difficulty or hardship or effort
  • easily - without question
  • easing - the act of reducing something unpleasant (as pain or annoyance)
  • east - situated in or facing or moving toward the east
  • easy - obtained with little effort or sacrifice, often obtained illegally
  • eat - eat a meal; take a meal
  • eating - the act of consuming food
  • eats - informal terms for a meal
  • ebola - a severe and often fatal disease in humans and nonhuman primates (monkeys and chimpanzees) caused by the Ebola virus; characterized by high fever and severe internal bleeding; can be spread from person to person; is largely limited to Africa
  • eburnation - a change that occurs in degenerative joint disease in which bone is converted into a dense smooth substance resembling ivory
  • ecchymosis - the escape of blood from ruptured blood vessels into the surrounding tissue to form a purple or black-and-blue spot on the skin
  • eccrine - (of exocrine glands) producing a clear aqueous secretion without releasing part of the secreting cell; important in regulating body temperature
  • eccyesis - pregnancy resulting from gestation elsewhere than in the uterus
  • ecdysis - periodic shedding of the cuticle in arthropods or the outer skin in reptiles
  • ecg - a graphical recording of the cardiac cycle produced by an electrocardiograph
  • echinococcosis - infestation with larval echinococci (tapeworms)
  • echinococcus - tapeworms whose larvae are parasitic in humans and domestic animals
  • echo - the persistence of a sound after its source has stopped
  • echocardiogram - a graphical image of the heart produced by an echocardiograph
  • echocardiography - a noninvasive diagnostic procedure that uses ultrasound to study to structure and motions of the heart
  • echoencephalography - a noninvasive diagnostic procedure that uses ultrasound to study the anatomy of the brain
  • echography - using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs
  • echolalia - (psychiatry) mechanical and meaningless repetition of the words of another person (as in schizophrenia)
  • echovirus - any of a group of viruses associated with various diseases including viral meningitis and mild respiratory disorders and diarrhea in newborn infants
  • eclampsia - a toxic condition characterized by convulsions and possibly coma during or immediately after pregnancy
  • eclipse - one celestial body obscures another
  • ecology - the branch of biology concerned with the relations between organisms and their environment
  • economics - the branch of social science that deals with the production and distribution and consumption of goods and services and their management
  • economy - an act of economizing; reduction in cost
  • ecstasy - a state of being carried away by overwhelming emotion
  • ect - the administration of a strong electric current that passes through the brain to induce convulsions and coma
  • ectasia - dilatation or distension of a hollow organ
  • ectoderm - the outer germ layer that develops into skin and nervous tissue
  • ectodermal - of or relating to the ectoderm
  • ectoparasite - any external parasitic organism (as fleas)
  • ectopia - abnormal position of a part or organ (especially at the time of birth)
  • ectopic - exhibiting ectopia
  • ectrodactyly - congenital abnormality involving the absence of some fingers or toes
  • eczema - generic term for inflammatory conditions of the skin; particularly with vesiculation in the acute stages
  • ed - impotence resulting from a man's inability to have or maintain an erection of his penis
  • edema - swelling from excessive accumulation of serous fluid in tissue
  • edematous - swollen with an excessive accumulation of fluid
  • edentulous - having lost teeth
  • edge - a sharp side formed by the intersection of two surfaces of an object
  • edged - having a specified kind of border or edge
  • edible - suitable for use as food
  • edinburgh - the capital of Scotland; located in the Lothian Region on the south side of the Firth of Forth
  • edited - improved or corrected by critical editing
  • edition - the form in which a text (especially a printed book) is published
  • educate - give an education to
  • educated - possessing an education (especially having more than average knowledge)
  • education - the profession of teaching (especially at a school or college or university)
  • educational - providing knowledge
  • edward - son of Edward III who defeated the French at Crecy and Poitiers in the Hundred Years' War (1330-1376)
  • edwards - American theologian whose sermons and writings stimulated a period of renewed interest in religion in America (1703-1758)
  • edwin - king of Northumbria who was converted to Christianity (585-633)
  • eeg - a graphical record of electrical activity of the brain; produced by an electroencephalograph
  • effacement - withdrawing into the background; making yourself inconspicuous
  • effect - (of a law) having legal validity
  • effective - existing in fact; not theoretical; real
  • effectively - in actuality or reality or fact
  • effectiveness - power to be effective; the quality of being able to bring about an effect
  • effector - an organ (a gland or muscle) that becomes active in response to nerve impulses
  • effects - property of a personal character that is portable but not used in business
  • efferent - of nerves and nerve impulses; conveying information away from the CNS
  • efficacy - capacity or power to produce a desired effect
  • efficiency - skillfulness in avoiding wasted time and effort
  • efficient - being effective without wasting time or effort or expense
  • efficiently - in an efficient manner
  • effleurage - a rhythmic stroking
  • effluent - that is flowing outward
  • effort - use of physical or mental energy; hard work
  • effusion - flow under pressure
  • egg - animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds
  • eggs - oval reproductive body of a fowl (especially a hen) used as food
  • ego - (psychoanalysis) the conscious mind
  • egyptian - of or relating to or characteristic of Egypt or its people or their language
  • eidetic - of visual imagery of almost photographic accuracy
  • eight - being one more than seven
  • eighteen - being one more than seventeen
  • eighth - coming next after the seventh and just before the ninth in position
  • eighty - being ten more than seventy
  • either - after a negative statement used as an intensive meaning something like `likewise' or `also'
  • ejaculate - the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
  • ejaculation - an abrupt emphatic exclamation expressing emotion
  • eject - leave an aircraft rapidly, using an ejection seat or capsule
  • ejection - the act of forcing out someone or something
  • ekg - a graphical recording of the cardiac cycle produced by an electrocardiograph
  • el - a railway that is powered by electricity and that runs on a track that is raised above the street level
  • elastic - capable of resuming original shape after stretching or compression; springy
  • elasticity - the tendency of a body to return to its original shape after it has been stretched or compressed
  • elastin - a fibrous scleroprotein found in elastic tissues such as the walls of arteries
  • elation - a feeling of joy and pride
  • elbow - the joint of a mammal or bird that corresponds to the human elbow
  • eld - a time in life (usually defined in years) at which some particular qualification or power arises
  • elderly - advanced in years; (`aged' is pronounced as two syllables)
  • eldest - first in order of birth
  • elective - subject to popular election
  • electra - (Greek mythology) the daughter of Agamemnon and Clytemnestra; persuaded her brother (Orestes) to avenge Agamemnon's death by helping her to kill Clytemnestra and her lover (Aegisthus)
  • electric - affected by emotion as if by electricity; thrilling
  • electrical - relating to or concerned with electricity
  • electrically - by electricity
  • electricity - keen and shared excitement
  • electrocardiogram - a graphical recording of the cardiac cycle produced by an electrocardiograph
  • electrocardiograph - medical instrument that records electric currents associated with contractions of the heart
  • electrocardiography - diagnostic procedure consisting of recording the activity of the heart electronically with a cardiograph (and producing a cardiogram)
  • electrocautery - application of a needle heated by an electric current to destroy tissue (as to remove warts)
  • electrochemical - of or involving electrochemistry
  • electrode - a conductor used to make electrical contact with some part of a circuit
  • electroencephalogram - a graphical record of electrical activity of the brain; produced by an electroencephalograph
  • electroencephalograph - medical instrument that records electric currents generated by the brain
  • electrolysis - removing superfluous or unwanted hair by passing an electric current through the hair root
  • electrolyte - a solution that conducts electricity
  • electrolytic - of or relating to or containing an electrolyte
  • electromagnetic - pertaining to or exhibiting magnetism produced by electric charge in motion
  • electromyogram - a graphical record of electric currents associated with muscle contractions
  • electromyography - diagnosis of neuromuscular disorders with the use of an electromyograph
  • electron - an elementary particle with negative charge
  • electronic - of or relating to electronics; concerned with or using devices that operate on principles governing the behavior of electrons
  • electronically - by electronic means
  • electrophoresis - the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode
  • electroretinogram - a graphical recording of the electrical activity of the retina that results when light is flashed into the eye
  • electrosurgery - surgery performed with electrical devices (as in electrocautery)
  • electrotherapy - the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis)
  • element - the most favorable environment for a plant or animal
  • elements - violent or severe weather (viewed as caused by the action of the four elements)
  • elephantiasis - hypertrophy of certain body parts (usually legs and scrotum); the end state of the disease filariasis
  • elevate - raise in rank or condition
  • elevated - raised above the ground
  • elevation - drawing of an exterior of a structure
  • elevator - lifting device consisting of a platform or cage that is raised and lowered mechanically in a vertical shaft in order to move people from one floor to another in a building
  • eleven - being one more than ten
  • eleventh - coming next after the tenth and just before the twelfth in position
  • elf - (folklore) fairies that are somewhat mischievous
  • eliminate - kill in large numbers
  • elimination - the murder of a competitor
  • elisa - an assay that relies on an enzymatic conversion reaction and is used to detect the presence of specific substances (such as enzymes or viruses or antibodies or bacteria)
  • elixir - a substance believed to cure all ills
  • ellison - United States novelist who wrote about a young Black man and his struggles in American society (1914-1994)
  • else - other than what is under consideration or implied
  • elsewhere - in or to another place
  • em - a linear unit (1/6 inch) used in printing
  • emaciated - very thin especially from disease or hunger or cold
  • emaciation - extreme leanness (usually caused by starvation or disease)
  • emasculation - loss of power and masculinity
  • embalm - preserve a dead body
  • embarrassment - some event that causes someone to be embarrassed
  • embolectomy - surgical removal of an embolus (usually from an artery)
  • embolic - of or relating to an embolism or embolus
  • embolism - occlusion of a blood vessel by an embolus (a loose clot or air bubble or other particle)
  • embolus - an abnormal particle (e.g. an air bubble or part of a clot) circulating in the blood
  • embrocation - a medicinal liquid that is rubbed into the skin to relieve muscular stiffness and pain
  • embryo - an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
  • embryology - the branch of biology that studies the formation and early development of living organisms
  • embryonic - in an early stage of development
  • emerge - come out into view, as from concealment
  • emergence - the act of emerging
  • emergency - a sudden unforeseen crisis (usually involving danger) that requires immediate action
  • emesis - the reflex act of ejecting the contents of the stomach through the mouth
  • emetic - a medicine that induces nausea and vomiting
  • emf - the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
  • emg - a graphical record of electric currents associated with muscle contractions
  • emile - the boy whose upbringing was described by Jean-Jacques Rousseau
  • eminence - high status importance owing to marked superiority
  • emissary - someone sent on a mission to represent the interests of someone else
  • emission - the act of emitting; causing to flow forth
  • emmenagogue - any agent that promotes menstrual discharge
  • emmetropia - (ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina
  • emollient - having a softening or soothing effect especially to the skin
  • emotion - any strong feeling
  • emotional - of more than usual emotion
  • emotionally - with regard to emotions
  • empathy - understanding and entering into another's feelings
  • emphasise - to stress, single out as important
  • emphysema - an abnormal condition of the lungs marked by decreased respiratory function; associated with smoking or chronic bronchitis or old age
  • empirical - derived from experiment and observation rather than theory
  • employed - having your services engaged for; or having a job especially one that pays wages or a salary
  • employee - a worker who is hired to perform a job
  • employer - a person or firm that employs workers
  • employment - the occupation for which you are paid
  • empowerment - the act of conferring legality or sanction or formal warrant
  • empty - holding or containing nothing
  • emptying - the act of removing the contents of something
  • empyema - a collection of pus in a body cavity (especially in the lung cavity)
  • emulsion - a light-sensitive coating on paper or film; consists of fine grains of silver bromide suspended in a gelatin
  • en - half the width of an em
  • enable - render capable or able for some task
  • enalapril - an ACE inhibitor (trade name Vasotec) that blocks the formation of angiotensin in the kidney and so results in vasodilation; administered after heart attacks
  • enamel - any smooth glossy coating that resembles ceramic glaze
  • enanthema - eruption on a mucous membrane (as the inside of the mouth) occurring as a symptom of a disease
  • enarthrosis - a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
  • encephalitis - inflammation of the brain usually caused by a virus; symptoms include headache and neck pain and drowsiness and nausea and fever (`phrenitis' is no longer in scientific use)
  • encephalocele - protrusion of brain tissue through a congenital fissure in the skull
  • encephalogram - an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast
  • encephalography - roentgenography of the brain after spinal fluid has been replaced by a gas (usually oxygen); produces an encephalogram
  • encephalomyelitis - inflammation of the brain and spinal cord
  • encephalon - that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
  • encephalopathy - any disorder or disease of the brain
  • enchondroma - benign slow-growing tumor of cartilaginous cells at the ends of tubular bones (especially in the hands and feet)
  • enclosed - closed in or surrounded or included within
  • enclosing - the act of enclosing something inside something else
  • encopresis - involuntary defecation not attributable to physical defects or illness
  • encounter - a casual meeting with a person of thing
  • encourage - spur on
  • encouraged - inspired with confidence
  • encouraging - giving courage or confidence or hope
  • encysted - enclosed in (or as if in) a cyst
  • end - a position on the line of scrimmage
  • endanger - pose a threat to; present a danger to
  • endarterectomy - surgical removal of the inner lining of an artery that is clogged with atherosclerosis
  • endarteritis - inflammation of the inner lining of an artery
  • ended - having come or been brought to a conclusion
  • endemic - native to or confined to a certain region
  • ending - the end of a word (a suffix or inflectional ending or final morpheme)
  • endocarditis - inflammation of the endocardium and heart valves
  • endocardium - the membrane that lines the cavities of the heart and forms part of the heart valves
  • endocervicitis - inflammation of the mucous lining of the uterine cervix
  • endocrine - of or belonging to endocrine glands or their secretions
  • endocrinologist - physician who specializes in the diagnosis and treatment of conditions affecting the endocrine system
  • endocrinology - the branch of medicine dealing with the endocrine glands and their secretions
  • endoderm - the inner germ layer that develops into the lining of the digestive and respiratory systems
  • endodontia - the branch of dentistry dealing with diseases of the dental pulp
  • endogenous - derived or originating internally
  • endolymph - the bodily fluid that fills the membranous labyrinth of the inner ear
  • endometrial - of or relating to the endometrium
  • endometriosis - the presence of endometrium elsewhere than in the lining of the uterus; causes premenstrual pain and dysmenorrhea
  • endometritis - inflammation of the lining of the uterus (of the endometrium)
  • endometrium - (pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition
  • endoneurium - delicate connective tissue around individual nerve fibers in nerve
  • endoparasite - any of various parasites that live in the internal organs of animals (especially intestinal worms)
  • endorphin - a neurochemical occurring naturally in the brain and having analgesic properties
  • endoscope - a long slender medical instrument for examining the interior of a bodily organ or performing minor surgery
  • endoscopic - of or relating to endoscopy
  • endoscopy - visual examination of the interior of a hollow body organ by use of an endoscope
  • endoskeleton - the internal skeleton; bony and cartilaginous structure (especially of vertebrates)
  • endosteum - vascular membrane that lines the inner surface of long bones
  • endothelial - of or relating to or located in the endothelium
  • endothelium - an epithelium of mesoblastic origin; a thin layer of flattened cells that lines the inside of some body cavities
  • endotoxin - a toxin that is confined inside the microorganisms and is released only when the microorganisms are broken down or die
  • endure - put up with something or somebody unpleasant
  • enema - injection of a liquid through the anus to stimulate evacuation; sometimes used for diagnostic purposes
  • energetic - possessing or exerting or displaying energy
  • energy - an imaginative lively style (especially style of writing)
  • enervation - lack of vitality
  • engagement - employment for performers or performing groups that lasts for a limited period of time
  • engineering - a room (as on a ship) in which the engine is located
  • england - a division of the United Kingdom
  • english - of or relating to or characteristic of England or its culture or people
  • engorged - overfull as with blood
  • engorgement - eating ravenously or voraciously to satiation
  • enhance - increase
  • enjoy - have benefit from
  • enjoyable - affording satisfaction or pleasure
  • enkephalin - an endorphin having opiate qualities that occurs in the brain and spinal cord and elsewhere
  • enlarge - make larger
  • enlarged - expanded in scope
  • enlargement - a photographic print that has been enlarged
  • enormously - extremely
  • enough - enough to meet a purpose
  • enquiry - a systematic investigation of a matter of public interest
  • enrolled - officially entered in a roll or list
  • ensiform - shaped like a sword blade
  • ensue - issue or terminate (in a specified way, state, etc.); end
  • ensure - be careful or certain to do something; make certain of something
  • enter - become a participant; be involved in
  • enteral - of or relating to or inside the intestines
  • enteric - of or relating to the enteron
  • entering - the act of entering
  • enteritis - inflammation of the intestine (especially the small intestine); usually characterized by diarrhea
  • enterobacteria - rod-shaped Gram-negative bacteria; most occur normally or pathogenically in intestines of humans and other animals
  • enterobiasis - an infestation with or a resulting infection caused by the pinworm Enterobius vermicularis; occurs especially in children
  • enterobius - pinworms
  • enterolith - a calculus occurring in the intestines
  • enteron - the alimentary canal (especially of an embryo or a coelenterate)
  • enteropathy - a disease of the intestinal tract
  • enteroptosis - an abnormally downward position of the intestines in the abdominal cavity
  • enterostomy - surgical operation that creates a permanent opening through the abdominal wall into the intestine
  • enterotomy - surgical operation that creates a permanent opening through the abdominal wall into the intestine
  • enterotoxin - a cytotoxin specific for the cells of the intestinal mucosa
  • enterovirus - any of a group of picornaviruses that infect the gastrointestinal tract and can spread to other areas (especially the nervous system)
  • entire - constituting the full quantity or extent; complete
  • entirely - without any others being included or involved
  • entitled - qualified for by right according to law
  • entity - that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
  • entoderm - the inner germ layer that develops into the lining of the digestive and respiratory systems
  • entrance - the act of entering
  • entrapment - a defense that claims the defendant would not have broken the law if not tricked into doing it by law enforcement officials
  • entry - an item inserted in a written record
  • enucleate - remove (a tumor or eye) from an enveloping sac or cover
  • enucleation - surgical removal of something without cutting into it
  • enuresis - inability to control the flow of urine and involuntary urination
  • environment - the area in which something exists or lives
  • environmental - concerned with the ecological effects of altering the environment
  • enzymatic - of or relating to or produced by an enzyme
  • enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
  • eosin - a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures
  • eosinopenia - a decrease in the number of eosinophils in the blood
  • eosinophil - a leukocyte readily stained with eosin
  • eosinophilia - a symptom of allergic states; increased eosinophils in the blood
  • ependyma - thin epithelial membrane lining the ventricles of the brain and the spinal cord canal
  • ephedrine - white odorless powdered or crystalline alkaloid from plants of the genus Ephedra (especially Ephedra sinica) or made synthetically; used as a bronchodilator to treat bronchitis and asthma
  • epi - a self-report personality inventory based on Hans Eysenck's factor analysis of personality which assumes three basic factors (the two most important being extraversion to introversion and neuroticism)
  • epicanthus - a vertical fold of skin over the nasal canthus; normal for Mongolian peoples; sometimes occurs in Down's syndrome
  • epicardium - the innermost of the two layers of the pericardium
  • epicondyle - a projection on a bone above a condyle serving for the attachment of muscles and ligaments
  • epicondylitis - painful inflammation of the muscles and soft tissues around an epicondyle
  • epicranium - the muscle and aponeurosis and skin covering the cranium
  • epidemic - (especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously
  • epidemiological - of or relating to epidemiology
  • epidemiologist - a medical scientist who studies the transmission and control of epidemic diseases
  • epidemiology - the branch of medical science dealing with the transmission and control of disease
  • epidermal - of or relating to a cuticle or cuticula
  • epidermis - the outer layer of the skin covering the exterior body surface of vertebrates
  • epididymis - a convoluted tubule in each testis; carries sperm to vas deferens
  • epididymitis - painful inflammation of the epididymis
  • epidural - on or outside the dura mater
  • epigastric - lying on or over the stomach
  • epigastrium - the region lying on or over the stomach (just below the sternum)
  • epiglottis - a flap of cartilage that covers the windpipe while swallowing
  • epiglottitis - inflammation of the epiglottis; characterized by fever and a severe sore throat and difficulty in swallowing
  • epilation - loss of hair; the result of removing hair
  • epilepsy - a disorder of the central nervous system characterized by loss of consciousness and convulsions
  • epileptic - of or relating to or characteristic of epilepsy
  • epinephrine - a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action
  • epiphenomenon - a secondary phenomenon that is a by-product of another phenomenon
  • epiphora - repetition of the ends of two or more successive sentences, verses, etc.
  • epiphyseal - relating to the epiphysis of a bone
  • epiphysis - the end of a long bone; initially separated from the main bone by a layer of cartilage that eventually ossifies so the parts become fused
  • episcleritis - inflammation of the sclera of the eye
  • episiotomy - surgical incision of the perineum to enlarge the vagina and so facilitate delivery during childbirth
  • episode - a brief section of a literary or dramatic work that forms part of a connected series
  • episodic - limited in duration to a single episode
  • epispadias - a congenital abnormality in males in which the urethra is on the upper surface of the penis
  • epistaxis - bleeding from the nose
  • epithelial - of or belonging to the epithelium
  • epithelioma - a malignant tumor of the epithelial tissue
  • epithelium - membranous tissue covering internal organs and other internal surfaces of the body
  • eponym - the name derived from a person (real or imaginary)
  • epstein - British sculptor (born in the United States) noted for busts and large controversial works (1880-1959)
  • equal - well matched; having the same quantity, value, or measure as another
  • equality - the quality of being the same in quantity or measure or value or status
  • equally - to the same degree (often followed by `as')
  • equator - an imaginary line around the Earth forming the great circle that is equidistant from the north and south poles
  • equilibrium - a sensory system located in structures of the inner ear that registers the orientation of the head
  • equipment - an instrumentality needed for an undertaking or to perform a service
  • equipped - carrying weapons
  • equivalent - being essentially equal to something
  • er - a room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatment
  • eradicate - kill in large numbers
  • eradication - the complete destruction of every trace of something
  • erect - upright in position or posture
  • erectile - filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood
  • erection - a structure that has been erected
  • erethism - an abnormally high degree of irritability or sensitivity to stimulation of an organ or body part
  • erg - a cgs unit of work or energy; the work done by a force of one dyne acting over a distance of one centimeter
  • ergonomic - of or relating to ergonomics
  • ergonomics - the branch of engineering science in which biological science is used to study the relation between workers and their environments
  • ergot - a fungus that infects various cereal plants forming compact black masses of branching filaments that replace many grains of the plant; source of medicinally important alkaloids and of lysergic acid
  • ergotamine - an alkaloid derived from ergot that is less toxic than ergot; causes constriction of blood vessels and is used to treat migraine
  • ergotism - poisoning by ingestion of ergot-infected grain products; characterized by thirst and diarrhea and nausea and craming and vomiting and abnormal cardiac rhythms; in severe cases it can cause seizures and gangrene of the limbs
  • ernst - painter (born in Germany, resident of France and the United States) who was a cofounder of dadaism; developed the technique of collage (1891-1976)
  • erogenous - sensitive to sexual stimulation
  • erosion - (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
  • erotic - giving sexual pleasure; sexually arousing
  • error - (baseball) a failure of a defensive player to make an out when normal play would have sufficed
  • eructation - a reflex that expels wind noisily from the stomach through the mouth
  • erupt - become active and spew forth lava and rocks
  • eruption - the emergence of a tooth as it breaks through the gum
  • erysipelas - an acute streptococcal infection characterized by deep-red inflammation of the skin and mucous membranes
  • erythema - abnormal redness of the skin resulting from dilation of blood vessels (as in sunburn or inflammation)
  • erythematous - relating to or characterized by erythema
  • erythroblast - a nucleated cell in bone marrow from which red blood cells develop
  • erythroblastosis - a blood disease characterized by the abnormal presence of erythroblasts in the blood
  • erythrocyte - a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus
  • erythroderma - any skin disorder involving abnormal redness
  • erythromycin - an antibiotic (trade name Erythrocin or E-Mycin or Ethril or Ilosone or Pediamycin) obtained from the actinomycete Streptomyces erythreus; effective against many Gram-positive bacteria and some Gram-negative
  • erythropoiesis - the process of producing red blood cells by the stem cells in the bone marrow
  • erythropoietin - a glycoprotein secreted by the kidneys that stimulates the production of red blood cells
  • es - a radioactive transuranic element produced by bombarding plutonium with neutrons
  • escape - the act of escaping physically
  • escaped - having escaped, especially from confinement
  • eschar - a dry scab formed on the skin following a burn or cauterization of the skin
  • escherichia - a genus of enteric bacteria
  • escort - the act of accompanying someone or something in order to protect them
  • esm - electronic warfare undertaken under direct control of an operational commander to locate sources of radiated electromagnetic energy for the purpose of immediate threat recognition
  • esophageal - relating to the esophagus
  • esophagus - the passage between the pharynx and the stomach
  • esotropia - strabismus in which one or both eyes turn inward toward the nose
  • especially - to a distinctly greater extent or degree than is common
  • esr - microwave spectroscopy in which there is resonant absorption of radiation by a paramagnet
  • essence - any substance possessing to a high degree the predominant properties of a plant or drug or other natural product from which it is extracted
  • essential - basic and fundamental
  • est - standard time in the 5th time zone west of Greenwich, reckoned at the 75th meridian; used in the eastern United States
  • establish - use as a basis for; found on
  • established - introduced from another region and persisting without cultivation
  • esteem - the condition of being honored (esteemed or respected or well regarded)
  • ester - formed by reaction between an acid and an alcohol with elimination of water
  • estimate - a judgment of the qualities of something or somebody
  • estonia - a republic in northeastern Europe on the Baltic Sea
  • estradiol - the most powerful female hormone that occurs naturally; synthesized and used to treat estrogen deficiency and breast cancer
  • estriol - a naturally occurring estrogenic hormone; a synthetic form is used to treat estrogen deficiency
  • estrogen - a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics
  • estrogenic - relating to or caused by estrogen
  • estrone - a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency
  • ethanol - the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline
  • ethene - a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
  • ether - a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic
  • ethical - conforming to accepted standards of social or professional behavior
  • ethics - the philosophical study of moral values and rules
  • ethmoid - one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity
  • ethnic - not acknowledging the God of Christianity and Judaism and Islam
  • ethyl - the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom
  • ethylene - a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
  • etiology - the philosophical study of causation
  • eu - an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members
  • eubacteria - a large group of bacteria having rigid cell walls; motile types have flagella
  • eucalyptus - a tree of the genus Eucalyptus
  • eugenics - the study of methods of improving genetic qualities by selective breeding (especially as applied to human mating)
  • eunuch - a man who has been castrated and is incapable of reproduction
  • euphemistic - of an inoffensive substitute for offensive terminology
  • euphoria - a feeling of great (usually exaggerated) elation
  • eustachio - Italian anatomist who was one of the fathers of modern anatomy; noted for descriptions of the ear and the heart (1520-1574)
  • euthanasia - the act of killing someone painlessly (especially someone suffering from an incurable illness)
  • ev - a unit of energy equal to the work done by an electron accelerated through a potential difference of 1 volt
  • evacuant - strongly laxative
  • evacuate - excrete or discharge from the body
  • evacuation - the act of evacuating; leaving a place in an orderly fashion; especially for protection
  • evaluate - form a critical opinion of
  • evaluation - act of ascertaining or fixing the value or worth of
  • evaporation - the process of extracting moisture
  • even - equal in degree or extent or amount; or equally matched or balanced
  • evening - the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)
  • event - something that happens at a given place and time
  • eventration - protrusion of the intestine through the abdominal wall
  • eventually - within an indefinite time or at an unspecified future time
  • ever - at any time
  • eversion - the position of being turned outward
  • every - (used of count nouns) each and all of the members of a group considered singly and without exception
  • everyday - commonplace and ordinary
  • everywhere - to or in any or all places
  • evidence - your basis for belief or disbelief; knowledge on which to base belief
  • evisceration - altering something (as a legislative act or a statement) in such a manner as to reduce its value
  • evolution - (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms
  • exacerbate - exasperate or irritate
  • exacerbating - making worse
  • exacerbation - violent and bitter exasperation
  • exact - marked by strict and particular and complete accordance with fact
  • exactly - indicating exactness or preciseness
  • exam - a set of questions or exercises evaluating skill or knowledge
  • examination - the act of examining something closely (as for mistakes)
  • examine - question closely
  • example - an item of information that is representative of a type
  • exanthem - eruption on the skin occurring as a symptom of a disease
  • excavator - a workman who excavates for foundations of buildings or for quarrying
  • exceed - go beyond
  • excellence - the quality of excelling; possessing good qualities in high degree
  • except - prevent from being included or considered or accepted
  • exception - a deliberate act of omission
  • excess - more than is needed, desired, or required
  • excessive - beyond normal limits
  • excessively - to an excessive degree
  • exchange - (chess) the capture by both players (usually on consecutive moves) of pieces of equal value
  • exchanged - changed for (replaced by) something different
  • excise - a tax that is measured by the amount of business done (not on property or income from real estate)
  • excision - the act of pulling up or out; uprooting; cutting off from existence
  • excitation - something that agitates and arouses
  • excitatory - (of drugs e.g.) able to excite or stimulate
  • excite - produce a magnetic field in
  • excited - in an aroused state
  • excitement - the state of being emotionally aroused and worked up
  • exclude - prevent from being included or considered or accepted
  • exclusively - without any others being included or involved
  • excoriation - severe censure
  • excrement - waste matter (as urine or sweat but especially feces) discharged from the body
  • excrescence - (pathology) an abnormal outgrowth or enlargement of some part of the body
  • excreta - waste matter (as urine or sweat but especially feces) discharged from the body
  • excrete - eliminate from the body
  • excretion - the bodily process of discharging waste matter
  • excruciating - extremely painful
  • executive - having the function of carrying out plans or orders etc.
  • exenteration - surgical removal of the organs within a body cavity (as those of the pelvis)
  • exercise - the activity of exerting your muscles in various ways to keep fit
  • exercising - the activity of exerting your muscles in various ways to keep fit
  • exert - put to use
  • exertion - use of physical or mental energy; hard work
  • exfoliation - the peeling off in flakes or scales of bark or dead skin
  • exhalation - the act of expelling air from the lungs
  • exhale - expel air
  • exhaust - system consisting of the parts of an engine through which burned gases or steam are discharged
  • exhausted - completely emptied of resources or properties
  • exhaustion - the act of exhausting something entirely
  • exhibitionism - the perverse act of exposing and attracting attention to your own genitals
  • exist - have an existence, be extant
  • existence - everything that exists anywhere
  • existing - presently existing
  • exit - the act of going out
  • exocrine - of or relating to exocrine glands or their secretions
  • exogenous - derived or originating externally
  • exomphalos - an umbilical hernia at birth in which some abdominal organs push into the umbilical cord
  • exophthalmos - protrusion of the eyeball from the socket
  • exoskeleton - the exterior protective or supporting structure or shell of many animals (especially invertebrates) including bony or horny parts such as nails or scales or hoofs
  • exostosis - a benign outgrowth from a bone (usually covered with cartilage)
  • exotic - strikingly strange or unusual
  • exotoxin - a toxin that is secreted by microorganisms into the surrounding medium
  • exotropia - strabismus in which one or both eyes are directed outward
  • expand - become larger in size or volume or quantity
  • expanded - increased in extent or size or bulk or scope
  • expansion - the act of increasing (something) in size or volume or quantity or scope
  • expect - look forward to the birth of a child
  • expectancy - something expected (as on the basis of a norm)
  • expectant - in an advanced stage of pregnancy
  • expected - considered likely or probable to happen or arrive
  • expectorant - a medicine promoting expectoration
  • expectorate - discharge (phlegm or sputum) from the lungs and out of the mouth
  • expectoration - the process of coughing up and spitting out
  • expel - put out or expel from a place
  • expensive - high in price or charging high prices
  • experience - the accumulation of knowledge or skill that results from direct participation in events or activities
  • experienced - having experience; having knowledge or skill from observation or participation
  • experiential - derived from experience or the experience of existence
  • experiment - the act of conducting a controlled test or investigation
  • experimental - relying on observation or experiment
  • expert - having or showing knowledge and skill and aptitude
  • expertise - skillfulness by virtue of possessing special knowledge
  • expiration - the act of expelling air from the lungs
  • expiratory - of or relating to the breathing out phase of respiration
  • expire - expel air
  • explain - make plain and comprehensible
  • explanation - thought that makes something comprehensible
  • exploitation - an act that exploits or victimizes someone (treats them unfairly)
  • exploration - to travel for the purpose of discovery
  • exploratory - serving in or intended for exploration or discovery
  • explore - examine (organs) for diagnostic purposes
  • explosion - the act of exploding or bursting something
  • expose - the exposure of an impostor or a fraud
  • exposed - not covered with clothing
  • exposure - the act of subjecting someone to an influencing experience
  • express - not tacit or implied
  • expressed - communicated in words
  • expression - the act of forcing something out by squeezing or pressing
  • exquisitely - in a delicate manner
  • extend - increase in quantity or bulk by adding a cheaper substance
  • extended - beyond the literal or primary sense
  • extension - act of expanding in scope; making more widely available
  • extensive - large in spatial extent or range or scope or quantity
  • extensor - a skeletal muscle whose contraction extends or stretches a body part
  • extent - the distance or area or volume over which something extends
  • exterior - situated in or suitable for the outdoors or outside of a building
  • exteriorisation - embodying in an outward form
  • exteriorization - embodying in an outward form
  • external - happening or arising or located outside or beyond some limits or especially surface
  • externally - on or from the outside
  • exteroceptor - any receptor that responds to stimuli outside the body
  • extinct - (of e.g. volcanos) permanently inactive
  • extinction - the act of extinguishing; causing to stop burning
  • extirpate - surgically remove (an organ)
  • extirpation - the act of pulling up or out; uprooting; cutting off from existence
  • extra - further or added
  • extracellular - located or occurring outside a cell or cells
  • extract - a passage selected from a larger work
  • extraction - the act of pulling out (as a tooth)
  • extractor - an instrument for extracting tight-fitting components
  • extradural - on or outside the dura mater
  • extraordinary - (of an official) serving an unusual or special function in addition to those of the regular officials
  • extrasensory - seemingly outside normal sensory channels
  • extrasystole - a premature systole resulting in a momentary cardiac arrhythmia
  • extravasation - the process of exuding or passing out of a vessel into surrounding tissues; said of blood or lymph or urine
  • extraversion - (psychology) an extroverted disposition; concern with what is outside the self
  • extravert - being concerned with the social and physical environment
  • extreme - most distant in any direction
  • extremely - to an extreme degree
  • extremity - an external body part that projects from the body
  • extrinsic - not forming an essential part of a thing or arising or originating from the outside
  • extroversion - (psychology) an extroverted disposition; concern with what is outside the self
  • extrovert - being concerned with the social and physical environment
  • extroverted - at ease in talking to others
  • exudate - a substance that oozes out from plant pores
  • exudation - the process of exuding; the slow escape of liquids from blood vessels through pores or breaks in the cell membranes
  • eye - a small hole or loop (as in a needle)
  • eyeball - the ball-shaped capsule containing the vertebrate eye
  • eyebath - a small vessel with a rim curved to fit the orbit of the eye; use to apply medicated or cleansing solution to the eyeball
  • eyebrow - the arch of hair above each eye
  • eyed - having an eye or eyes or eyelike feature especially as specified; often used in combination
  • eyeglasses - optical instrument consisting of a pair of lenses for correcting defective vision
  • eyelash - any of the short curved hairs that grow from the edges of the eyelids
  • eyelid - either of two folds of skin that can be moved to cover or open the eye
  • eyes - opinion or judgment
  • eyesight - normal use of the faculty of vision
  • eyestrain - a tiredness of the eyes caused by prolonged close work by a person with an uncorrected vision problem
  • eyetooth - one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

F

  • fa - the syllable naming the fourth (subdominant) note of the diatonic scale in solmization
  • face - a vertical surface of a building or cliff
  • faced - having a face or facing especially of a specified kind or number; often used in combination
  • facet - a smooth surface (as of a bone or cut gemstone)
  • facial - of or pertaining to the outside surface of an object
  • facilitate - make easier
  • facilitation - act of assisting or making easier the progress or improvement of something
  • facility - a service that an organization or a piece of equipment offers you
  • facing - a protective covering that protects the outside of a building
  • fact - a piece of information about circumstances that exist or events that have occurred
  • factor - an independent variable in statistics
  • factory - a plant consisting of one or more buildings with facilities for manufacturing
  • faculty - one of the inherent cognitive or perceptual powers of the mind
  • fade - gradually ceasing to be visible
  • faecal - foul with waste matter; of or relating to feces
  • faecalith - a hard mass of fecal matter
  • faeces - solid excretory product evacuated from the bowels
  • fahrenheit - German physicist who invented the mercury thermometer and developed the scale of temperature that bears his name (1686-1736)
  • fail - get worse
  • failed - unable to meet financial obligations
  • failing - below acceptable in performance
  • failure - an unexpected omission
  • faint - lacking conviction or boldness or courage
  • faintness - barely audible
  • fair - (used of hair or skin) pale or light-colored
  • fairbanks - United States film actor noted for his swashbuckling roles (1883-1939)
  • faith - loyalty or allegiance to a cause or a person
  • falciform - curved like a sickle
  • fall - a lapse into sin; a loss of innocence or of chastity
  • fallen - killed in battle
  • falling - becoming lower or less in degree or value
  • fallopio - Italian anatomist who first described the Fallopian tubes (1523-1562)
  • fallot - French physician who described cardiac anomalies including Fallot's tetralogy (1850-1911)
  • fallout - the radioactive particles that settle to the ground after a nuclear explosion
  • falls - the petals or sepals of a flower that bend downward (especially the outer perianth of an iris)
  • false - (used especially of persons) not dependable in devotion or affection; unfaithful
  • familial - tending to occur among members of a family usually by heredity
  • familiar - having mutual interests or affections; of established friendship
  • family - primary social group; parents and children
  • famotidine - a histamine blocker (trade name Pepcid) used to treat peptic ulcers and gastritis and esophageal reflux
  • fantasise - portray in the mind
  • fantasize - portray in the mind
  • fantasy - imagination unrestricted by reality
  • far - at a great distance in time or space or degree
  • fare - the food and drink that are regularly consumed
  • farinaceous - composed of or covered with particles resembling meal in texture or consistency
  • farm - workplace consisting of farm buildings and cultivated land as a unit
  • farthest - (comparatives of `far') most remote in space or time or order
  • fascia - a sheet or band of fibrous connective tissue separating or binding together muscles and organs etc
  • fasciculation - muscular twitching of contiguous groups of muscle fibers
  • fasciculus - a bundle of fibers (especially nerve fibers)
  • fascioliasis - infestation with the liver fluke Fasciola hepatica; liver damage sometimes occurs; related to liver rot
  • fasciolopsis - a genus of Fasciolidae
  • fashioned - planned and made or fashioned artistically
  • fast - acting or moving or capable of acting or moving quickly
  • fastened - firmly closed or secured
  • faster - more quickly
  • fat - a chubby body
  • fatal - controlled or decreed by fate; predetermined
  • fatality - the quality of being able to cause death or fatal disasters
  • fatally - with fatal consequences or implications
  • father - God when considered as the first person in the Trinity
  • fatigue - (always used with a modifier) boredom resulting from overexposure to something
  • fatigued - drained of energy or effectiveness; extremely tired; completely exhausted
  • fatty - containing or composed of fat
  • fauces - the passage between the back of the mouth and the pharynx
  • fault - (sports) a serve that is illegal (e.g., that lands outside the prescribed area)
  • faulty - characterized by errors
  • favism - anemia resulting from eating fava beans; victims have an inherited blood abnormality and enzyme deficiency
  • favus - a contagious fungal infection of the scalp; occurs mainly in Africa and the Middle East
  • fda - a federal agency in the Department of Health and Human Services established to regulate the release of new foods and health-related products
  • fe - a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
  • fear - an emotion experienced in anticipation of some specific pain or danger (usually accompanied by a desire to flee or fight)
  • feature - an article of merchandise that is displayed or advertised more than other articles
  • febrifuge - any medicine that lowers body temperature to prevent or alleviate fever
  • febrile - of or relating to or characterized by fever
  • fecal - foul with waste matter; of or relating to feces
  • fecundation - making fertile as by applying fertilizer or manure
  • fed - the central bank of the United States; incorporates 12 Federal Reserve branch banks and all national banks and state charted commercial banks and some trust companies
  • federation - the act of constituting a political unity out of a number of separate states or colonies or provinces so that each member retains the management of its internal affairs
  • fee - an interest in land capable of being inherited
  • feeble - lacking strength
  • feed - food for domestic livestock
  • feedback - response to an inquiry or experiment
  • feeding - the act of supplying food and nourishment
  • feel - manual stimulation of the genital area for sexual pleasure
  • feeling - the experiencing of affective and emotional states
  • feelings - emotional or moral sensitivity (especially in relation to personal principles or dignity)
  • fell - (of persons or their actions) able or disposed to inflict pain or suffering
  • fellow - an informal form of address for a man
  • felon - a purulent infection at the end of a finger or toe in the area surrounding the nail
  • felt - a fabric made of compressed matted animal fibers
  • female - being the sex (of plant or animal) that produces fertilizable gametes (ova) from which offspring develop
  • femininity - the trait of behaving in ways considered typical for women
  • feminisation - the process of becoming feminized; the development of female characteristics (loss of facial hair or breast enlargement) in a male because of hormonal disorders or castration
  • feminization - the process of becoming feminized; the development of female characteristics (loss of facial hair or breast enlargement) in a male because of hormonal disorders or castration
  • femoral - of or relating to or near the femur or thigh
  • femoris - the longest and thickest bone of the human skeleton; extends from the pelvis to the knee
  • femur - the longest and thickest bone of the human skeleton; extends from the pelvis to the knee
  • fen - 100 fen equal 1 yuan in China
  • fence - a barrier that serves to enclose an area
  • fenestra - a small opening covered with membrane (especially one in the bone between the middle and inner ear)
  • fenestration - surgical procedure that creates a new fenestra to the cochlea in order to restore hearing lost because of osteosclerosis
  • fenoprofen - a nonsteroidal anti-inflammatory drug (trade name Nalfon) used in the treatment of arthritis and other painful inflammatory disorders
  • fentanyl - trade names of a narcotic analgesic that can be inhaled and that acts on the central nervous system and may become addictive; used as a veterinary anesthetic and with other drugs before, during, and after surgery; also used as a nonlethal gas to incapacitate people in hostage situations; also abused as a recreational drug
  • fermentation - a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol
  • ferric - of or relating to or containing iron
  • ferritin - a protein containing 20% iron that is found in the intestines and liver and spleen; it is one of the chief forms in which iron is stored in the body
  • ferrous - of or relating to or containing iron
  • ferrule - a metal cap or band placed on a wooden pole to prevent splitting
  • ferry - transport by boat or aircraft
  • fertile - capable of reproducing
  • fertilisation - making fertile as by applying fertilizer or manure
  • fertilise - introduce semen into (a female)
  • fertiliser - any substance such as manure or a mixture of nitrates used to make soil more fertile
  • fertility - the state of being fertile; capable of producing offspring
  • fertilization - making fertile as by applying fertilizer or manure
  • fertilize - provide with fertilizers or add nutrients to
  • fess - (heraldry) an ordinary consisting of a broad horizontal band across a shield
  • fester - a sore that has become inflamed and formed pus
  • festering - (medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pus
  • festination - involuntary shortening of stride and quickening of gait that occurs in some diseases (e.g., Parkinson's disease)
  • fet - a transistor in which most current flows in a channel whose effective resistance can be controlled by a transverse electric field
  • fetal - of or relating to a fetus
  • fetichism - sexual arousal or gratification resulting from handling a fetish (or a specific part of the body other than the sexual organs)
  • fetishism - sexual arousal or gratification resulting from handling a fetish (or a specific part of the body other than the sexual organs)
  • fetishist - one who engages in fetishism (especially of a sexual nature)
  • fetoprotein - any of several antigens that occur naturally in the fetus and sometimes in adults with cancer
  • fetor - a distinctive odor that is offensively unpleasant
  • fetoscope - a stethoscope placed on the pregnant woman's abdomen to listen for the fetal heartbeat
  • fetoscopy - prenatal diagnosis that allows direct observation of a fetus in the uterus and the withdrawal of fetal blood
  • fetus - an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal
  • fever - intense nervous anticipation
  • feverfew - bushy aromatic European perennial herb having clusters of buttonlike white-rayed flower heads; valued traditionally for medicinal uses; sometimes placed in genus Chrysanthemum
  • feverish - marked by intense agitation or emotion
  • few - a quantifier that can be used with count nouns and is often preceded by `a'; a small but indefinite number
  • fewer - (comparative of `few' used with count nouns) quantifier meaning a smaller number of
  • fiber - a leatherlike material made by compressing layers of paper or cloth
  • fibre - a leatherlike material made by compressing layers of paper or cloth
  • fibreoptics - the transmission of light signals via glass fibers
  • fibril - a very slender natural or synthetic fiber
  • fibrillate - make fine, irregular, rapid twitching movements
  • fibrillation - act or process of forming fibrils
  • fibrin - a white insoluble fibrous protein formed by the action of thrombin on fibrinogen when blood clots; it forms a network that traps red cells and platelets
  • fibrinogen - a protein present in blood plasma; converts to fibrin when blood clots
  • fibrinolysin - an enzyme that dissolves the fibrin of blood clots
  • fibrinolysis - a normal ongoing process that dissolves fibrin and results in the removal of small blood clots
  • fibroadenoma - benign and movable and firm and not tender tumor of the breast; common in young women and caused by high levels of estrogen
  • fibroblast - a cell from which connective tissue develops
  • fibrocartilage - cartilage that is largely composed of fibers like those in ordinary connective tissue
  • fibroid - benign tumor containing fibrous tissue (especially in the uterus)
  • fibroma - nonmalignant tumor of connective tissue
  • fibrosis - development of excess fibrous connective tissue in an organ
  • fibrositis - inflammation of white fibrous tissues (especially muscle sheaths)
  • fibrous - (of meat) full of sinews; especially impossible to chew
  • fibula - the outer and thinner of the two bones of the human leg between the knee and ankle
  • field - a particular kind of commercial enterprise
  • fields - United States comedian and film actor (1880-1946)
  • fifteen - being one more than fourteen
  • fifth - coming next after the fourth and just before the sixth in position
  • fifty - being ten more than forty
  • fight - a boxing or wrestling match
  • figure - a predetermined set of movements in dancing or skating
  • filament - a thin wire (usually tungsten) that is heated white hot by the passage of an electric current
  • filamentous - thin in diameter; resembling a thread
  • filaria - slender threadlike roundworms living in the blood and tissues of vertebrates; transmitted as larvae by biting insects
  • filariasis - a disease caused by nematodes in the blood or tissues of the body causing blockage of lymphatic vessels
  • file - a steel hand tool with small sharp teeth on some or all of its surfaces; used for smoothing wood or metal
  • filiform - thin in diameter; resembling a thread
  • fill - a quantity sufficient to satisfy
  • filled - (usually followed by `with' or used as a combining form) generously supplied with
  • filling - the act of filling something
  • film - a thin coating or layer
  • filter - device that removes something from whatever passes through it
  • filtrate - the product of filtration; a gas or liquid that has been passed through a filter
  • filtration - the act of changing a fluid by passing it through a filter
  • filum - a threadlike structure (as a chainlike series of cells)
  • fimbria - thin projections forming a fringe (especially around the ovarian end of the Fallopian tube)
  • final - not to be altered or undone
  • finally - after a long period of time or an especially long delay
  • finance - the commercial activity of providing funds and capital
  • financial - involving financial matters
  • find - the act of discovering something
  • finding - the decision of a court on issues of fact or law
  • findings - a collection of tools and other articles used by an artisan to make jewelry or clothing or shoes
  • fine - characterized by elegance or refinement or accomplishment
  • finger - one of the parts of a glove that provides covering for a finger or thumb
  • fingernail - the nail at the end of a finger
  • fingerprint - biometric identification from a print made by an impression of the ridges in the skin of a finger; often used as evidence in criminal investigations
  • fingerprinting - the procedure of taking inked impressions of a person's fingerprints for the purpose of identification
  • fingerstall - a sheath worn to protect a finger
  • finished - brought to ruin
  • finnish - of or relating to or characteristic of Finland or the people of Finland
  • fire - the act of firing weapons or artillery at an enemy
  • fireproof - impervious to damage by fire
  • firm - strong and sure
  • firmly - with resolute determination
  • first - being the gear producing the lowest drive speed
  • fish - any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills
  • fissile - capable of being split or cleft or divided in the direction of the grain
  • fission - a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
  • fissure - (anatomy) a long narrow slit or groove that divides an organ into lobes
  • fist - a hand with the fingers clenched in the palm (as for hitting)
  • fistula - an abnormal passage leading from a suppurating cavity to the body surface
  • fit - physically and mentally sound or healthy
  • fitch - dark brown mustelid of woodlands of Eurasia that gives off an unpleasant odor when threatened
  • fitness - the condition of being suitable
  • fitted - being the right size and shape to fit as desired
  • fitter - improved in health or physical condition
  • fitting - being precisely fitting and right
  • five - being one more than four
  • fix - an exemption granted after influence (e.g., money) is brought to bear
  • fixation - (histology) the preservation and hardening of a tissue sample to retain as nearly as possible the same relations they had in the living body
  • fixative - a varnish dissolved in alcohol and sprayed over pictures to prevent smudging
  • fixed - incapable of being changed or moved or undone; e.g. "frozen prices"
  • fixing - the act of putting something in working order again
  • fl - a state in southeastern United States between the Atlantic and the Gulf of Mexico; one of the Confederate states during the American Civil War
  • flab - loose or flaccid body fat
  • flabby - out of condition; not strong or robust; incapable of exertion or endurance
  • flaccid - drooping without elasticity; wanting in stiffness
  • flaccidity - a flabby softness
  • flagellate - having or resembling a lash or whip (as does a flagellum)
  • flagellum - a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa)
  • flagyl - antiprotozoal medication (trade name Flagyl) used to treat trichomoniasis and giardiasis
  • flail - an implement consisting of handle with a free swinging stick at the end; used in manual threshing
  • flake - a small fragment of something broken off from the whole
  • flammable - easily ignited
  • flap - any broad thin and limber covering attached at one edge; hangs loose or projects freely
  • flaps - a movable airfoil that is part of an aircraft wing; used to increase lift or drag
  • flare - (baseball) a fly ball hit a short distance into the outfield
  • flash - tastelessly showy
  • flashback - a transition (in literary or theatrical works or films) to an earlier event or scene that interrupts the normal chronological development of the story
  • flashing - emitting light in sudden short or intermittent bursts
  • flat - commercially inactive
  • flatness - the property of having little or no contrast; lacking highlights or gloss
  • flats - footwear (shoes or slippers) with no heel (or a very low heel)
  • flatulence - a state of excessive gas in the alimentary canal
  • flatulent - generating excessive gas in the alimentary canal
  • flatus - a reflex that expels intestinal gas through the anus
  • flatworm - parasitic or free-living worms having a flattened body
  • flavour - the taste experience when a savoury condiment is taken into the mouth
  • flea - any wingless bloodsucking parasitic insect noted for ability to leap
  • flecainide - oral antiarrhythmic medication (trade name Tambocor) used as a last resort in treating arrhythmias; increases the risk of sudden death in heart attack patients
  • flesh - the soft tissue of the body of a vertebrate: mainly muscle tissue and fat
  • fleshy - usually describes a large person who is fat but has a large frame to carry it
  • flex - the act of flexing
  • flexible - bending and snapping back readily without breaking
  • flexion - act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased
  • flexor - a skeletal muscle whose contraction bends a joint
  • flexure - the state of being flexed (as of a joint)
  • flies - (theater) the space over the stage (out of view of the audience) used to store scenery (drop curtains)
  • flight - a scheduled trip by plane between designated airports
  • float - something that remains on the surface of a liquid
  • floating - borne up by or suspended in a liquid
  • flood - a large flow
  • flooding - overfull with water
  • floor - the inside lower horizontal surface (as of a room or hallway)
  • floppy - hanging limply
  • flora - a living organism lacking the power of locomotion
  • florence - a town in northeast South Carolina; transportation center
  • florentine - of or relating to or characteristic of the city of Florence
  • florid - inclined to a healthy reddish color often associated with outdoor life
  • floss - a soft loosely twisted thread used in embroidery
  • flour - fine powdery foodstuff obtained by grinding and sifting the meal of a cereal grain
  • flow - the act of flowing or streaming; continuous progression
  • flower - reproductive organ of angiosperm plants especially one having showy or colorful parts
  • flowing - moving smoothly and continuously
  • flu - an acute febrile highly contagious viral disease
  • fluctuating - having unpredictable ups and downs
  • fluctuation - the quality of being unsteady and subject to changes
  • fluently - in a fluent manner
  • fluid - subject to change; variable
  • fluke - parasitic flatworms having external suckers for attaching to a host
  • fluorescence - light emitted during absorption of radiation of some other (invisible) wavelength
  • fluorescent - emitting light during exposure to radiation from an external source
  • fluoridate - subject to fluoridation; treat with fluoride
  • fluoridation - the addition of a fluoride to the water supply (to prevent dental decay)
  • fluoride - a salt of hydrofluoric acid
  • fluorine - a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
  • fluoroscope - an X-ray machine that combines an X-ray source and a fluorescent screen to enable direct observation
  • fluoroscopy - examination of body structures using a fluoroscope
  • fluorosis - a pathological condition resulting for an excessive intake of fluorine (usually from drinking water)
  • fluoxetine - a selective-serotonin reuptake inhibitor commonly prescribed as an antidepressant (trade name Prozac)
  • flush - of a surface exactly even with an adjoining one, forming the same plane
  • flushed - having the pinkish flush of health
  • flutter - abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block
  • fluttering - the motion made by flapping up and down
  • flux - in constant change
  • fly - (British informal) not to be deceived or hoodwinked
  • flying - done swiftly in or as if in the air; used e.g. of a racing start in which runners are already in motion as they cross the starting line
  • fm - modulation of the frequency of the (radio) carrier wave
  • foam - a mass of small bubbles formed in or on a liquid
  • focal - having or localized centrally at a focus
  • focus - maximum clarity or distinctness of an image rendered by an optical system
  • focused - of an optical system (e.g. eye or opera glasses) adjusted to produce a clear image
  • focusing - the act of bringing into focus
  • foetal - of or relating to a fetus
  • foetor - a distinctive odor that is offensively unpleasant
  • foetoscope - a stethoscope placed on the pregnant woman's abdomen to listen for the fetal heartbeat
  • foetoscopy - prenatal diagnosis that allows direct observation of a fetus in the uterus and the withdrawal of fetal blood
  • foetus - an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal
  • folacin - a B vitamin that is essential for cell growth and reproduction
  • fold - the act of folding
  • folding - capable of being folded up and stored
  • folie - (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness
  • follicle - any small spherical group of cells containing a cavity
  • follicular - of or relating to or constituting a follicle
  • folliculitis - inflammation of a hair follicle
  • follow - behave in accordance or in agreement with
  • following - about to be mentioned or specified
  • fomentation - deliberate and intentional triggering (of trouble or discord)
  • fontanel - any membranous gap between the bones of the cranium in an infant or fetus
  • fontanelle - any membranous gap between the bones of the cranium in an infant or fetus
  • food - any substance that can be metabolized by an organism to give energy and build tissue
  • foot - travel by walking
  • football - any of various games played with a ball (round or oval) in which two teams try to kick or carry or propel the ball into each other's goal
  • foramen - a natural opening or perforation through a bone or a membranous structure
  • force - physical energy or intensity
  • forced - made necessary by an unexpected situation or emergency
  • forceps - an extractor consisting of a pair of pincers used in medical treatment (especially for the delivery of babies)
  • forcibly - in a forcible manner
  • fore - situated at or toward the bow of a vessel
  • forearm - the part of the superior limb between the elbow and the wrist
  • forebrain - the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube
  • forecast - a prediction about how something (as the weather) will develop
  • forefinger - the finger next to the thumb
  • forehead - the large cranial bone forming the front part of the cranium: includes the upper part of the orbits
  • foreign - relating to or originating in or characteristic of another place or part of the world
  • foremilk - milky fluid secreted for the first day or two after parturition
  • forensic - of, relating to, or used in courts of law or public debate or argument
  • foresee - realize beforehand
  • foreskin - a fold of skin covering the tip of the penis
  • forever - for a very long or seemingly endless time
  • forget - be unable to remember
  • forgetful - failing to keep in mind
  • forgetfulness - tendency to forget
  • forgotten - no longer known; irretrievable
  • fork - cutlery used for serving and eating food
  • form - a mold for setting concrete
  • formal - being in accord with established forms and conventions and requirements (as e.g. of formal dress)
  • formaldehyde - a colorless poisonous gas; made by the oxidation of methanol
  • formalin - a 10% solution of formaldehyde in water; used as a disinfectant or to preserve biological specimens
  • formation - the fabrication of something in a particular shape
  • formed - fully developed as by discipline or training
  • former - referring to the first of two things or persons mentioned (or the earlier one or ones of several)
  • formerly - at a previous time
  • formication - hallucinated sensation that insects or snakes are crawling over the skin; a common side-effect of extensive use of cocaine or amphetamines
  • formula - a group of symbols that make a mathematical statement
  • formulary - of or relating to or of the nature of a formula
  • fornix - an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodies
  • fortification - the addition of an ingredient for the purpose of enrichment (as the addition of alcohol to wine or the addition of vitamins to food)
  • forty - being ten more than thirty
  • forward - moving toward a position ahead
  • forwards - in a forward direction
  • fossa - largest carnivore of Madagascar; intermediate in some respects between cats and civets
  • foster - providing or receiving nurture or parental care though not related by blood or legal ties
  • foul - (of a baseball) not hit between the foul lines
  • found - come upon unexpectedly or after searching
  • foundation - lowest support of a structure
  • founded - having a basis; often used as combining terms
  • founder - a person who founds or establishes some institution
  • four - being one more than three
  • fourhanded - (of card games) involving or requiring four players
  • fourteen - being one more than thirteen
  • fourth - coming next after the third and just before the fifth in position or time or degree or magnitude
  • fovea - area consisting of a small depression in the retina containing cones and where vision is most acute
  • foxglove - any of several plants of the genus Digitalis
  • fr - a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
  • fracture - the act of cracking something
  • fragile - vulnerably delicate
  • fragility - lack of physical strength
  • fragment - an incomplete piece
  • fragrant - pleasant-smelling
  • frail - physically weak
  • framboesia - an infectious tropical disease resembling syphilis in its early stages; marked by red skin eruptions and ulcerating lesions
  • frame - one of a series of still transparent photographs on a strip of film used in making movies
  • framework - a structure supporting or containing something
  • france - a republic in western Europe; the largest country wholly in Europe
  • frank - clearly manifest; evident
  • fraternal - (of twins) derived from two separate fertilized ova
  • freckle - a small brownish spot (of the pigment melanin) on the skin
  • freckled - relating to or covered with or resembling freckles
  • frederick - a town in northern Maryland west of Baltimore
  • free - not literal
  • freedom - the condition of being free; the power to act or speak or think without externally imposed restraints
  • freeing - the act of liberating someone or something
  • freely - in a free manner
  • freeze - fixing (of prices or wages etc) at a particular level
  • freezing - the withdrawal of heat to change something from a liquid to a solid
  • french - of or pertaining to France or the people of France
  • frenchman - a person of French nationality
  • frequency - the number of observations in a given statistical category
  • frequent - frequently encountered
  • frequently - many times at short intervals
  • fresh - improperly forward or bold
  • freshly - very recently
  • fretful - habitually complaining
  • freudian - of or relating to Sigmund Freud or his psychoanalytic ideas
  • fri - the sixth day of the week; the fifth working day
  • friable - (used of soil) loose and large-grained in consistency
  • friction - effort expended in moving one object over another with pressure
  • friedman - United States economist noted as a proponent of monetarism and for his opposition to government intervention in the economy (born 1912)
  • friend - a member of the Religious Society of Friends founded by George Fox (the Friends have never called themselves Quakers)
  • friendly - characteristic of or befitting a friend
  • frightened - made afraid
  • frightening - causing fear or dread or terror
  • frigidity - sexual unresponsiveness (especially of women) and inability to achieve orgasm during intercourse
  • fringe - edging consisting of hanging threads or tassels
  • frog - any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species
  • front - relating to or located in the front
  • frontal - belonging to the front part
  • frostbite - destruction of tissue by freezing and characterized by tingling, blistering and possibly gangrene
  • frostbitten - injured by freezing or partial freezing
  • frozen - not convertible to cash
  • fructose - a simple sugar found in honey and in many ripe fruits
  • fructosuria - the presence of levulose is the urine
  • fruit - the consequence of some effort or action
  • fry - English dramatist noted for his comic verse dramas (born 1907)
  • frying - cooking in fat or oil in a pan or griddle
  • fsh - a gonadotropic hormone that is secreted by the anterior pituitary and stimulates growth of Graafian follicles in female mammals, and activates the cells in male mammals that form sperm
  • ft - a linear unit of length equal to 12 inches or a third of a yard
  • fuel - a substance that can be consumed to produce energy
  • fugue - a musical form consisting of a theme repeated a fifth above or a fourth below its first statement
  • fulfil - fill or meet a want or need
  • fulfilment - the act of consummating something (a desire or promise etc)
  • full - having the normally expected amount
  • fully - to the greatest degree or extent; completely or entirely; (`full' in this sense is used as a combining form)
  • fulminant - sudden and severe
  • fumes - gases ejected from an engine as waste products
  • fumigate - treat with fumes, expose to fumes, especially with the aim of disinfecting or eradicating pests
  • fumigation - the application of a gas or smoke to something for the purpose of disinfecting it
  • function - the actions and activities assigned to or required or expected of a person or group
  • functional - designed for or capable of a particular function or use
  • functioning - performing or able to perform its regular function
  • fund - a reserve of money set aside for some purpose
  • fundamental - being or involving basic facts or principles
  • funded - furnished with funds
  • fundus - (anatomy) the base of a hollow organ or that part of the organ farthest from its opening
  • fungal - of or relating to fungi
  • fungi - (pun) the one who buys the drinks
  • fungicide - any agent that destroys or prevents the growth of fungi
  • fungoid - resembling fungi
  • fungus - a parasitic plant lacking chlorophyll and leaves and true stems and roots and reproducing by spores
  • funiculitis - inflammation of a funiculus (especially an inflammation of the spermatic cord)
  • funiculus - any of several body structure resembling a cord
  • funnel - (nautical) smokestack consisting of a shaft for ventilation or the passage of smoke (especially the smokestack of a ship)
  • funny - experiencing odd bodily sensations
  • furniture - furnishings that make a room or other area ready for occupancy
  • furor - a sudden outburst (as of protest)
  • furosemide - commonly used diuretic (trade name Lasix) used to treat hypertension and edema
  • furred - covered with a dense coat of fine silky hairs
  • further - more distant in especially degree
  • furuncle - a painful sore with a hard core filled with pus
  • furunculosis - acute skin disease characterized by the presence of many furuncles
  • fuse - any igniter that is used to initiate the burning of a propellant
  • fused - joined together into a whole
  • fusiform - tapering at each end
  • fusion - the act of fusing (or melting) together
  • future - coming at a subsequent time or stage

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

G

  • ga - a state in southeastern United States; one of the Confederate states during the American Civil War
  • gaba - an amino acid that is found in the central nervous system; acts as an inhibitory neurotransmitter
  • gag - restraint put into a person's mouth to prevent speaking or shouting
  • gain - the amount by which the revenue of a business exceeds its cost of operating
  • gait - a person's manner of walking
  • galactagogue - agent that induces milk secretion
  • galactocele - a cystic tumor containing milk or a milky substance (especially in the mammary glands)
  • galactose - a simple sugar found in lactose
  • galea - an organ shaped like a helmet; usually a vaulted and enlarged petal as in Aconitum
  • galen - Greek anatomist whose theories formed the basis of European medicine until the Renaissance (circa 130-200)
  • gall - abnormal swelling of plant tissue caused by insects or microorganisms or injury
  • gallium - a rare silvery (usually trivalent) metallic element; brittle at low temperatures but liquid above room temperature; occurs in trace amounts in bauxite and zinc ores
  • gallop - a fast gait of a horse; a two-beat stride during which all four legs are off the ground simultaneously
  • gallstone - a calculus formed in the gall bladder or its ducts
  • galvanism - electricity produced by chemical action
  • game - willing to face danger
  • gamete - a mature sexual reproductive cell having a single set of unpaired chromosomes
  • gametocyte - an immature animal or plant cell that develops into a gamete by meiosis
  • gametogenesis - the development and maturation of sex cells through meiosis
  • gamma - the 3rd letter of the Greek alphabet
  • ganglion - an encapsulated neural structure consisting of a collection of cell bodies or neurons
  • gangrene - necrotic tissue; a mortified or gangrenous part or mass
  • gangrenous - suffering from tissue death
  • gap - a narrow opening
  • gargle - the sound produced while gargling
  • gargoylism - hereditary disease (autosomal recessive) consisting of an error is mucopolysaccharide metabolism; characterized by severe abnormalities in development of skeletal cartilage and bone and mental retardation
  • gas - the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container
  • gash - a strong sweeping cut made with a sharp instrument
  • gashed - wounded by cutting deeply
  • gasp - a short labored intake of breath with the mouth open
  • gasping - breathing laboriously or convulsively
  • gastralgia - an ache localized in the stomach or abdominal region
  • gastrectomy - surgical removal of all or part of the stomach
  • gastric - relating to or involving the stomach
  • gastrin - polypeptide hormone secreted by the mucous lining of the stomach; induces the secretion of gastric juice
  • gastritis - inflammation of the lining of the stomach; nausea and loss of appetite and discomfort after eating
  • gastrocnemius - the muscle in the back part of the leg that forms the greater part of the calf; responsible for the plantar flexion of the foot
  • gastroduodenal - of or relating to the stomach and the duodenum
  • gastroenteritis - inflammation of the stomach and intestines; can be caused by Salmonella enteritidis
  • gastroenterologist - a physician who specializes in diseases of the gastrointestinal tract
  • gastroenterology - the branch of medicine that studies the gastrointestinal tract and its diseases
  • gastroenterostomy - surgical creation of an opening between the stomach wall and the small intestines; performed when the normal opening has been eliminated
  • gastrointestinal - of or relating to the stomach and intestines
  • gastroscope - a type of endoscope for visually examining the stomach
  • gastroscopy - visual examination of the stomach by means of a gastroscope inserted through the esophagus
  • gastrostomy - surgical creation of an opening through the abdominal wall into the stomach (as for gastrogavage)
  • gastrula - double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
  • gathered - having accumulated or become more intense
  • gathering - a group of persons together in one place
  • gauze - a net of transparent fabric with a loose open weave
  • gavage - feeding that consists of the delivery of a nutrient solution (as through a nasal tube) to someone who cannot or will not eat
  • gay - homosexual or arousing homosexual desires
  • ge - (Greek mythology) goddess of the earth and mother of Cronus and the Titans in ancient mythology
  • geiger - German physicist who developed the Geiger counter (1882-1945)
  • gel - a colloid in a more solid form than a sol
  • gelatin - a thin translucent membrane used over stage lights for color effects
  • gelatinous - thick like gelatin
  • gender - a grammatical category in inflected languages governing the agreement between nouns and pronouns and adjectives; in some languages it is quite arbitrary but in Indo-European languages it is usually based on sex or animateness
  • gene - (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity
  • general - prevailing among and common to the general public
  • generalise - become systemic and spread throughout the body
  • generalised - spread throughout a body or system
  • generalize - become systemic and spread throughout the body
  • generalized - spread throughout a body or system
  • generally - without distinction of one from others
  • generate - bring into existence
  • generic - applicable to an entire class or group
  • generous - more than adequate
  • genesis - the first book of the Old Testament: tells of creation; Adam and Eve; the Fall of Man; Cain and Abel; Noah and the flood; God's covenant with Abraham; Abraham and Isaac; Jacob and Esau; Joseph and his brothers
  • genetic - of or relating to the science of genetics
  • genetically - by genetic mechanisms
  • geneticist - a biologist who specializes in genetics
  • genetics - the branch of biology that studies heredity and variation in organisms
  • genic - of or relating to or produced by or being a gene
  • genital - of or relating to the external sex organs
  • genitalia - external sex organ
  • genitals - external sex organ
  • genitourinary - of or related to the genital and urinary organs or their functions
  • genome - the ordering of genes in a haploid set of chromosomes of a particular organism; the full DNA sequence of an organism
  • genotype - the particular alleles at specified loci present in an organism
  • gentamicin - an antibiotic (trade name Garamycin) that is derived from an actinomycete; used in treating infections of the urinary tract
  • gentian - any of various plants of the family Gentianaceae especially the genera Gentiana and Gentianella and Gentianopsis
  • gentle - having or showing a kindly or tender nature
  • gently - in a gradual manner
  • genu - hinge joint in the human leg connecting the tibia and fibula with the femur and protected in front by the patella
  • genus - a general kind of something
  • george - Elector of Hanover and the first Hanoverian King of Great Britain and Ireland from 1714 to 1727 (1660-1727)
  • geriatric - of or relating to or practicing geriatrics
  • geriatrician - a specialist in gerontology
  • geriatrics - the branch of medical science that deals with diseases and problems specific to old people
  • germ - a small apparently simple structure (as a fertilized egg) from which new tissue can develop into a complete organism
  • german - of or pertaining to or characteristic of Germany or its people or language
  • germany - a republic in central Europe; split into East German and West Germany after World War II and reunited in 1990
  • germinal - containing seeds of later development
  • gerontologist - a specialist in gerontology
  • gerontology - the branch of medical science that deals with diseases and problems specific to old people
  • gestate - have the idea for
  • gestation - the conception and development of an idea or plan
  • gestational - of or relating to gestation
  • get - a return on a shot that seemed impossible to reach and would normally have resulted in a point for the opponent
  • getting - the act of acquiring something
  • gi - of or relating to the stomach and intestines
  • giant - of great mass; huge and bulky
  • giardia - a suspected cause of diarrhea in humans
  • giardiasis - infection of the intestines with protozoa found in contaminated food and water; characterized by diarrhea and nausea and flatulence and abdominal discomfort
  • gibbosity - something that bulges out or is protuberant or projects from its surroundings
  • giddiness - an impulsive scatterbrained manner
  • giddy - lacking seriousness; given to frivolity
  • gift - something acquired without compensation
  • gigantism - excessive largeness of stature
  • gill - respiratory organ of aquatic animals that breathe oxygen dissolved in water
  • gin - a form of rummy in which a player can go out if the cards remaining in their hand total less than 10 points
  • gingiva - the tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth
  • gingival - of or relating to the gums
  • gingivitis - inflammation of the gums
  • ginglymus - a freely moving joint in which the bones are so articulated as to allow extensive movement in one plane
  • ginseng - Chinese herb with palmately compound leaves and small greenish flowers and forked aromatic roots believed to have medicinal powers
  • girdle - a band of material around the waist that strengthens a skirt or trousers
  • girl - a young woman
  • give - the elasticity of something that can be stretched and returns to its original length
  • given - acknowledged as a supposition
  • giving - given or giving freely
  • glabella - a smooth prominence of the frontal bone between and above the eyebrows; the most forward projecting point of the forehead in the midline at the level of the supraorbital ridges
  • glad - feeling happy appreciation
  • gladiolus - the large central part of the breastbone
  • gland - any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream
  • glanders - a destructive and contagious bacterial disease of horses that can be transmitted to humans
  • glandular - relating to or affecting or functioning as a gland
  • glans - a small rounded structure; especially that at the end of the penis or clitoris
  • glare - an angry stare
  • glasgow - largest city in Scotland; a port on the Clyde in west central Scotland; one of the great shipbuilding centers of the world
  • glass - a container for holding liquids while drinking
  • glasses - optical instrument consisting of a pair of lenses for correcting defective vision
  • glaucoma - increased pressure in the eyeball due to obstruction of the outflow of aqueous humor; damages the optic disc and impairs vision (sometimes progressing to blindness)
  • gleet - a thin morbid discharge as from a wound or especially chronic gonorrhea
  • glia - sustentacular tissue that surrounds and supports neurons in the central nervous system; glial and neural cells together compose the tissue of the central nervous system
  • glial - of or relating to neuroglia
  • glioblastoma - a fast-growing malignant brain tumor composed of spongioblasts; nearly always fatal
  • glioma - a tumor of the brain consisting of neuroglia
  • global - involving the entire earth; not limited or provincial in scope
  • globin - a colorless protein obtained by removing heme from hemoglobin; the oxygen carrying compound in red blood cells
  • globule - a small globe or ball
  • globulin - a family of proteins found in blood and milk and muscle and in plant seed
  • glomerular - of or relating to glomeruli
  • glomerulonephritis - nephritis marked by inflammation of the glomeruli of the kidney; characterized by decreased production of urine and by the presence of blood and protein in the urine and by edema
  • glomerulus - a small intertwined group of capillaries in the malpighian body; it filters the blood during urine formation
  • gloss - an explanation or definition of an obscure word in a text
  • glossa - a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity
  • glossina - bloodsucking African fly; transmits sleeping sickness etc.
  • glossitis - inflammation of the tongue
  • glossodynia - pain in the tongue
  • glossopharyngeal - pertaining to the tongue and throat
  • glottis - the vocal apparatus of the larynx; the true vocal folds and the space between them where the voice tone is generated
  • glowing - highly enthusiastic
  • glucagon - a hormone secreted by the pancreas; stimulates increases in blood sugar levels in the blood (thus opposing the action of insulin)
  • glucocorticoid - a steroid hormone that is produced by the adrenal cortex of animals; affects functioning of gonads and has anti-inflammatory activity
  • glucose - a monosaccharide sugar that has several forms; an important source of physiological energy
  • glucosuria - the presence of abnormally high levels of glucose in the urine
  • glue - cement consisting of a sticky substance that is used as an adhesive
  • glutamate - a salt or ester of glutamic acid
  • glutamine - a crystalline amino acid occurring in proteins; important in protein metabolism
  • gluteal - of or relating to or near the gluteus muscles
  • gluten - a protein substance that remains when starch is removed from cereal grains; gives cohesiveness to dough
  • gluteus - any one of three large skeletal muscles that form the buttock and move the thigh
  • glycerin - a sweet syrupy trihydroxy alcohol obtained by saponification of fats and oils
  • glycerine - a sweet syrupy trihydroxy alcohol obtained by saponification of fats and oils
  • glycerol - a sweet syrupy trihydroxy alcohol obtained by saponification of fats and oils
  • glyceryl - a trivalent radical derived from glycerol by removing the three hydroxyl radicals
  • glycine - genus of Asiatic erect or sprawling herbs: soya bean
  • glycogen - one form in which body fuel is stored; stored primarily in the liver and broken down into glucose when needed by the body
  • glycogenesis - the conversion of glucose to glycogen when the glucose in the blood exceeds the demand
  • glycolysis - a metabolic process that breaks down carbohydrates and sugars through a series of reactions to either pyruvic acid or lactic acid and release energy for the body in the form of ATP
  • glycoside - a group of compounds derived from monosaccharides
  • glycosuria - the presence of abnormally high levels of sugar in the urine
  • go - functioning correctly and ready for action
  • goal - a successful attempt at scoring
  • goblet - a drinking glass with a base and stem
  • going - in full operation
  • goiter - abnormally enlarged thyroid gland; can result from underproduction or overproduction of hormone or from a deficiency of iodine in the diet
  • goitre - abnormally enlarged thyroid gland; can result from underproduction or overproduction of hormone or from a deficiency of iodine in the diet
  • goitrogen - any substance (such as thiouracil) that induces the formation of a goiter
  • gold - made from or covered with gold
  • golden - favoring or bringing good luck
  • golgi - Italian histologist noted for work on the structure of the nervous system and for his discovery of Golgi bodies (1844-1926)
  • gonad - a gland in which gametes (sex cells) are produced
  • gonadotrophic - of or relating to or involving gonadotropin
  • gonadotrophin - hormone secreted by the anterior pituitary gland and placenta; stimulates the gonads and controls reproductive activity
  • gonadotropin - hormone secreted by the anterior pituitary gland and placenta; stimulates the gonads and controls reproductive activity
  • gone - having all been spent
  • gonion - the craniometric point on either side at the apex of the lower jaw
  • gonococcus - the pus-producing bacterium that causes gonorrhea
  • gonorrhoea - a common venereal disease caused by the bacterium Neisseria gonorrhoeae; symptoms are painful urination and pain around the urethra
  • good - thorough
  • goose - web-footed long-necked typically gregarious migratory aquatic birds usually larger and less aquatic than ducks
  • gorget - armor plate that protects the neck
  • gouge - the act of gouging
  • gout - a painful inflammation of the big toe and foot caused by defects in uric acid metabolism resulting in deposits of the acid and its salts in the blood and joints
  • govern - direct or strongly influence the behavior of
  • governance - the act of governing; exercising authority
  • governed - the body of people who are citizens of a particular government
  • governing - responsible for making and enforcing rules and laws
  • government - the act of governing; exercising authority
  • gown - a woman's dress, usually with a close-fitting bodice and a long flared skirt, often worn on formal occasions
  • gp - a physician who is not a specialist but treats all illnesses
  • gps - a navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver
  • grade - a variety of cattle produced by crossbreeding with a superior breed
  • gradual - proceeding in small stages
  • gradually - in a gradual manner
  • graduate - of or relating to studies beyond a bachelor's degree
  • graduated - (of taxes) increasing as the amount taxed increases
  • graft - the act of grafting something onto something else
  • grafting - the act of grafting something onto something else
  • grain - the direction or texture of fibers found in wood or leather or stone or in a woven fabric
  • gram - Danish physician and bacteriologist who developed a method of staining bacteria to distinguish among them (1853-1938)
  • grand - the most important and magnificent in adornment
  • grandfather - the father of your father or mother
  • granular - having a granular structure like that of chondrites
  • granulation - the act of forming something into granules or grains
  • granule - a tiny grain
  • granulocyte - a leukocyte that has granules in its cytoplasm
  • granulocytopenia - an acute blood disorder (often caused by radiation or drug therapy) characterized by severe reduction in granulocytes
  • granuloma - a tumor composed of granulation tissue resulting from injury or inflammation or infection
  • granulomatous - relating to or characterized by granulomas
  • grapefruit - large yellow fruit with somewhat acid juicy pulp; usual serving consists of a half
  • graph - a visual representation of the relations between certain quantities plotted with reference to a set of axes
  • grave - of great gravity or crucial import; requiring serious thought
  • gravel - unpleasantly harsh or grating in sound
  • graves - English writer known for his interest in mythology and in the classics (1895-1985)
  • gravid - in an advanced stage of pregnancy
  • gravity - a solemn and dignified feeling
  • gray - of an achromatic color of any lightness intermediate between the extremes of white and black
  • graze - the act of grazing
  • grazed - scraped or touched lightly in passing
  • grease - a thick fatty oil (especially one used to lubricate machinery)
  • great - of major significance or importance
  • greater - greater in size or importance or degree
  • greatest - highest in quality
  • greatly - to an extraordinary extent or degree
  • greek - of or relating to or characteristic of Greece or the Greeks
  • green - of the color between blue and yellow in the color spectrum; similar to the color of fresh grass
  • greenish - of the color between blue and yellow in the color spectrum; similar to the color of fresh grass
  • gregory - (Roman Catholic Church) an Italian pope distinguished for his spiritual and temporal leadership; a saint and Doctor of the Church (540?-604)
  • grey - of an achromatic color of any lightness intermediate between the extremes of white and black
  • grief - something that causes great unhappiness
  • grinding - a harsh and strident sound (as of the grinding of gears)
  • gripe - informal terms for objecting
  • griping - acute abdominal pain (especially in infants)
  • groin - the crease at the junction of the inner part of the thigh with the trunk together with the adjacent region and often including the external genitals
  • grommet - fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines
  • groove - (anatomy) any furrow or channel on a bodily structure or part
  • gross - repellently fat
  • ground - (art) the surface (as a wall or canvas) prepared to take the paint for a painting
  • grounds - a tract of land cleared for some special purposes (recreation or burial etc.)
  • group - any number of entities (members) considered as a unit
  • grouped - arranged into groups
  • grouping - the activity of putting things together in groups
  • grow - come to have or undergo a change of (physical features and attributes)
  • growing - increasing in size or degree or amount
  • grown - (of animals) fully developed
  • growth - vegetation that has grown
  • grumbling - muttering discontentedly
  • gu - of or related to the genital and urinary organs or their functions
  • guanine - a purine base found in DNA and RNA; pairs with cytosine
  • guard - a position on a basketball team
  • guardian - providing protective supervision; watching over or safeguarding
  • guess - an estimate based on little or no information
  • guidance - the act of guiding or showing the way
  • guide - someone who shows the way by leading or advising
  • guided - subject to guidance or control especially after launching
  • guillotine - instrument of execution that consists of a weighted blade between two vertical poles; used for beheading people
  • guilt - remorse caused by feeling responsible for some offence
  • guilty - showing a sense of guilt
  • guinea - a republic in western Africa on the Atlantic; formerly a French colony; achieved independence from France in 1958
  • gulf - an unbridgeable disparity (as from a failure of understanding)
  • gullet - the passage between the pharynx and the stomach
  • gum - any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying
  • gumboil - a boil or abscess on the gums
  • gumma - a small rubbery granuloma that is characteristic of an advanced stage of syphilis
  • gun - the discharge of a firearm as signal or as a salute in military ceremonies
  • gunshot - the act of shooting a gun
  • gustation - the faculty of distinguishing sweet, sour, bitter, and salty properties in the mouth
  • gustatory - of or relating to gustation
  • gut - a narrow channel or strait
  • guthrie - United States folk singer and songwriter (1912-1967)
  • gutter - a channel along the eaves or on the roof; collects and carries away rainwater
  • gynaecological - of or relating to or practicing gynecology
  • gynaecologist - a specialist in gynecology
  • gynaecology - the branch of medicine that deals with the diseases and hygiene of women
  • gypsum - a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
  • gyrus - a convex fold or elevation in the surface of the brain

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

H

  • ha - (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
  • habit - a pattern of behavior acquired through frequent repetition
  • habitual - made a norm or custom or habit
  • habitually - according to habit or custom
  • habituation - a general accommodation to unchanging environmental conditions
  • habitus - person's predisposition to be affected by something (as a disease)
  • haem - a complex red organic pigment containing iron and other atoms to which oxygen binds
  • haemagglutination - agglutination of red blood cells
  • haemangioma - benign angioma consisting of a mass of blood vessels; some appear as birthmarks
  • haematemesis - vomiting blood
  • haematic - relating to or containing or affecting blood
  • haematinic - a medicine that increases the hemoglobin content of the blood; used to treat iron-deficiency anemia
  • haematocele - swelling caused by blood collecting in a body cavity (especially a swelling of the membrane covering the testis)
  • haematocoele - swelling caused by blood collecting in a body cavity (especially a swelling of the membrane covering the testis)
  • haematocolpos - accumulation of menstrual blood in the vagina (usually due to an imperforate hymen)
  • haematocrit - a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood
  • haematological - of or relating to or involved in hematology
  • haematologist - a doctor who specializes in diseases of the blood and blood-forming organs
  • haematology - the branch of medicine that deals with diseases of the blood and blood-forming organs
  • haematoma - a localized swelling filled with blood
  • haematopoiesis - the formation of blood cells in the living body (especially in the bone marrow)
  • haematuria - the presence of blood in the urine; often a symptom of urinary tract disease
  • haemodialysis - dialysis of the blood to remove toxic substances or metabolic wastes from the bloodstream; used in the case of kidney failure
  • haemoglobin - a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues
  • haemoglobinopathy - a blood disease characterized by the presence of abnormal hemoglobins in the blood
  • haemoglobinuria - presence of hemoglobin in the urine
  • haemolysin - any substance that can cause lysis (destruction) of erythrocytes (red blood cells) and the release of their hemoglobin
  • haemolysis - lysis of erythrocytes with the release of hemoglobin
  • haemolytic - relating to or involving or causing hemolysis
  • haemophilia - congenital tendency to uncontrolled bleeding; usually affects males and is transmitted from mother to son
  • haemophiliac - someone who has hemophilia and is subject to uncontrollable bleeding
  • haemophilic - relating to or having hemophilia
  • haemopoiesis - the formation of blood cells in the living body (especially in the bone marrow)
  • haemopoietic - pertaining to the formation of blood or blood cells
  • haemoptysis - coughing up blood from the respiratory tract; usually indicates a severe infection of the bronchi or lungs
  • haemorrhage - flow of blood from a ruptured blood vessels
  • haemorrhagic - of or relating to a hemorrhage
  • haemorrhoidectomy - surgical procedure for tying hemorrhoids and excising them
  • haemosiderosis - abnormal deposit of hemosiderin; often a symptom of thalassemia or hemochromatosis
  • haemostasis - surgical procedure of stopping the flow of blood (as with a hemostat)
  • haemostat - a surgical instrument that stops bleeding by clamping the blood vessel
  • haemothorax - accumulation of blood in the pleural cavity (the space between the lungs and the walls of the chest)
  • hair - a filamentous projection or process on an organism
  • hairline - the natural margin formed by hair on the head
  • hairy - hazardous and frightening
  • half - consisting of one of two equivalent parts in value or quantity
  • halfway - including only half or a portion
  • halitosis - offensive breath
  • hallucinate - perceive what is not there; have illusions
  • hallucinating - experiencing delirium
  • hallucination - an object perceived during a hallucinatory episode
  • hallucinatory - characterized by or characteristic of hallucination
  • hallucinogen - a psychoactive drug that induces hallucinations or altered sensory experiences
  • hallucinogenic - capable of producing hallucinations
  • hallux - the first largest innermost toe
  • halo - a circle of light around the sun or moon
  • haloperidol - tranquilizer (trade name Haldol) used to treat some psychotic disorders and Tourette's syndrome
  • halothane - a nonflammable inhalation anesthetic that produces general anesthesia; used along with analgesics and muscle relaxants for many types of surgical procedures
  • halt - disabled in the feet or legs
  • hamamelis - deciduous shrubs or small trees: witch hazel
  • hamartoma - a focal growth that resembles a neoplasm but results from faulty development in an organ
  • hamate - the wrist bone in line with the 4th and 5th fingers
  • hamilton - the capital of Bermuda
  • hammer - the act of pounding (delivering repeated heavy blows)
  • hamstring - one of the tendons at the back of the knee
  • hand - physical assistance
  • handed - having or involving the use of hands
  • handedness - the property of using one hand more than the other
  • handicap - advantage given to a competitor to equalize chances of winning
  • handicapped - markedly unable to function as a consequence of injury or illness
  • handkerchief - a square piece of cloth used for wiping the eyes or nose or as a costume accessory
  • handle - the appendage to an object that is designed to be held in order to use or move it
  • handling - the action of touching with the hands (or the skillful use of the hands) or by the use of mechanical means
  • hands - (with `in') guardianship over; in divorce cases it is the right to house and care for and discipline a child
  • hang - a gymnastic exercise performed on the rings or horizontal bar or parallel bars when the gymnast's weight is supported by the arms
  • hanging - supported from above
  • hangnail - a loose narrow strip of skin near the base of a fingernail; tearing it produces a painful sore that is easily infected
  • hangover - something that has survived from the past
  • haploid - of a cell or organism having a single set of chromosomes
  • happen - come to pass
  • happening - taking place
  • happiness - emotions experienced when in a state of well-being
  • happy - well expressed and to the point
  • hard - dried out
  • harden - become hard or harder
  • hardened - converted to solid form (as concrete)
  • hardening - the act of making something harder (firmer or tighter or more compact)
  • harding - 29th President of the United States; two of his appointees were involved in the Teapot Dome scandal (1865-1823)
  • hardly - almost not
  • harelip - a congenital cleft in the middle of the upper lip
  • harm - the act of damaging something or someone
  • harmed - having had pain or loss or suffering inflicted
  • harmful - causing or capable of causing harm
  • harmless - not threatening to life or health; not malignant
  • harris - publisher of the first newspaper printed in America (1673-1713)
  • harry - make a pillaging or destructive raid on (a place), as in wartimes
  • harsh - sharply disagreeable; rigorous
  • hartford - the state capital of Connecticut; located in central Connecticut on the Connecticut river; a center of the insurance business
  • harvard - American philanthropist who left his library and half his estate to the Massachusetts college that now bears his name (1607-1638)
  • harvest - the season for gathering crops
  • harvey - English physician and scientist who described the circulation of the blood; he later proposed that all animals originate from an ovum produced by the female of the species (1578-1657)
  • hashish - purified resinous extract of the hemp plant; used as a hallucinogen
  • hatched - shaded by means of fine parallel or crossed lines
  • hatred - the emotion of hate; a feeling of dislike so strong that it demands action
  • have - a person who possesses great material wealth
  • hay - grass mowed and cured for use as fodder
  • hazard - an obstacle on a golf course
  • hazel - of a light brown or yellowish brown color
  • hb - a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues
  • hcg - hormone produced early in pregnancy by the placenta; detection in the urine and serum is the basis for one kind of pregnancy test
  • hdl - a lipoprotein that transports cholesterol in the blood; composed of a high proportion of protein and relatively little cholesterol; high levels are thought to be associated with decreased risk of coronary heart disease and atherosclerosis
  • he - the 5th letter of the Hebrew alphabet
  • head - a single domestic animal
  • headache - pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs
  • heading - a line of text serving to indicate what the passage below it is about
  • headword - a word placed at the beginning of a line or paragraph (as in a dictionary entry)
  • heal - get healthy again
  • healed - freed from illness or injury
  • healing - tending to cure or restore to health
  • health - the general condition of body and mind
  • healthcare - the preservation of mental and physical health by preventing or treating illness through services offered by the health profession
  • healthier - improved in health or physical condition
  • healthily - in a levelheaded manner
  • healthy - having or indicating good health in body or mind; free from infirmity or disease
  • hear - receive a communication from someone
  • heard - detected or perceived by the sense of hearing
  • hearing - able to perceive sound
  • heart - a playing card in the major suit that has one or more red hearts on it
  • heartbeat - an animating or vital unifying force
  • heartburn - a painful burning sensation in the chest caused by gastroesophageal reflux (backflow from the stomach irritating the esophagus); symptomatic of an ulcer or a diaphragmatic hernia or other disorder
  • hearts - a form of whist in which players avoid winning tricks containing hearts or the queen of spades
  • heat - the trait of being intensely emotional
  • heated - made warm or hot (`het' is a dialectal variant of `heated')
  • heather - common Old World heath represented by many varieties; low evergreen grown widely in the northern hemisphere
  • heating - the process of becoming warmer; a rising temperature
  • heatstroke - collapse caused by exposure to excessive heat
  • heavily - to a considerable degree
  • heavy - darkened by clouds
  • hebephrenia - a form of schizophrenia characterized by severe disintegration of personality including erratic speech and childish mannerisms and bizarre behavior; usually becomes evident during puberty; the most common diagnostic category in mental institutions
  • hebephrenic - suffering from a form of schizophrenia characterized by foolish mannerisms and senseless laughter along with delusions and regressive behavior
  • hebetude - mental lethargy or dullness
  • hectic - marked by intense agitation or emotion
  • heel - the bottom of a shoe or boot; the back part of a shoe or boot that touches the ground and provides elevation
  • height - the vertical dimension of extension; distance from the base of something to the top
  • heights - a high place
  • hel - (religion) the world of the dead
  • held - occupied or in the control of; often used in combination
  • helicopter - an aircraft without wings that obtains its lift from the rotation of overhead blades
  • heliotherapy - therapeutic exposure to sunlight
  • helium - a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
  • helix - type genus of the family Helicidae
  • heller - United States novelist whose best known work was a black comedy inspired by his experiences in the Air Force during World War II (1923-1999)
  • helm - a position of leadership
  • helmet - a protective headgear made of hard material to resist blows
  • helminth - worm that is parasitic on the intestines of vertebrates especially roundworms and tapeworms and flukes
  • helminthiasis - infestation of the body with parasitic worms
  • help - the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose
  • helper - a person who helps people or institutions (especially with financial help)
  • helpful - showing a willingness to cooperate
  • helping - an individual quantity of food or drink taken as part of a meal
  • hem - lap that forms a cloth border doubled back and stitched down
  • hemeralopia - inability to see clearly in bright light
  • hemianopia - blindness in one half of the visual field of one or both eyes
  • hemicrania - a severe recurring vascular headache; occurs more frequently in women than men
  • hemiplegia - paralysis of one side of the body
  • hemiplegic - a person who has hemiplegia (is paralyzed on one side of the body)
  • hemisphere - either half of the cerebrum
  • hemolysis - lysis of erythrocytes with the release of hemoglobin
  • hemorrhage - flow of blood from a ruptured blood vessels
  • hemp - a plant fiber
  • hen - female of certain aquatic animals e.g. octopus or lobster
  • henry - United States physicist who studied electromagnetic phenomena (1791-1878)
  • hep - informed about the latest trends
  • heparin - a polysaccharide produced in basophils (especially in the lung and liver) and that inhibits the activity of thrombin in coagulation of the blood; it (trade names Lipo-Hepin and Liquaemin) is used as an anticoagulant in the treatment of thrombosis and in heart surgery
  • hepatic - pertaining to or affecting the liver
  • hepatitis - inflammation of the liver caused by a virus or a toxin
  • hepatoma - carcinoma of the liver
  • hepatomegaly - abnormal enlargement of the liver
  • hepatotoxic - toxic to the liver
  • herald - (formal) a person who announces important news
  • herb - aromatic potherb used in cookery for its savory qualities
  • herbal - of or relating to herbs
  • herbalist - a therapist who heals by the use of herbs
  • herd - a group of cattle or sheep or other domestic mammals all of the same kind that are herded by humans
  • here - being here now
  • hereditary - inherited or inheritable by established rules (usually legal rules) of descent
  • heredity - the total of inherited attributes
  • hermann - German hero; leader at the battle of Teutoburger Wald in AD 9 (circa 18 BC - AD 19)
  • hermaphrodite - of animal or plant; having both male female reproductive organs
  • hermaphroditism - congenital condition in which external genitalia and internal sex organs have both male and female characteristics
  • hernia - rupture in smooth muscle tissue through which a bodily structure protrudes
  • herniation - rupture in smooth muscle tissue through which a bodily structure protrudes
  • heroin - a narcotic that is considered a hard drug; a highly addictive morphine derivative; intravenous injection provides the fastest and most intense rush
  • herpes - any of the animal viruses that cause painful blisters on the skin
  • hertz - German physicist who with James Franck proved the existence of the stationary energy states postulated by Bohr (1887-1975)
  • hesitating - lacking decisiveness of character; unable to act or decide quickly or firmly
  • het - made warm or hot (`het' is a dialectal variant of `heated')
  • heterogeneous - consisting of elements that are not of the same kind or nature
  • heterogenous - originating outside the body
  • heterograft - tissue from an animal of one species used as a temporary graft (as in cases of severe burns) on an individual of another species
  • heterologous - derived from organisms of a different but related species
  • heterosexual - sexually attracted to members of the opposite sex
  • heterosexuality - a sexual attraction to (or sexual relations with) persons of the opposite sex
  • heterozygous - having dissimilar alleles at corresponding chromosomal loci
  • hex - of or pertaining to a number system having 16 as its base
  • hg - 100 grams
  • hi - an expression of greeting
  • hiatus - a missing piece (as a gap in a manuscript)
  • hiccough - (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion
  • hiccup - (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion
  • hidden - difficult to find
  • hiding - the activity of keeping something secret
  • hidrosis - the process of the sweat glands of the skin secreting a salty fluid
  • hidrotic - of or relating to sweat
  • hierarchy - the organization of people at different ranks in an administrative body
  • higginson - United States writer and soldier who led the first Black regiment in the Union Army (1823-1911)
  • high - happy and excited and energetic
  • higher - of education beyond the secondary level
  • highly - in a high position or level or rank
  • hilar - of or relating to or located near a hilum
  • hilum - the scar on certain seeds marking its point of attachment to the funicle
  • hindbrain - the posterior portion of the brain including cerebellum and brainstem
  • hindgut - the caudal part of the alimentary canal in vertebrate embryos
  • hindu - of or relating to or supporting Hinduism
  • hinge - a joint that holds two parts together so that one can swing relative to the other
  • hip - informed about the latest trends
  • hippocampus - seahorses
  • hippocratic - of or relating to Hippocrates or the school of medicine that took his name
  • hire - the act of hiring something or someone
  • hirschsprung - Danish pediatrician (1830-1916)
  • hirsute - having or covered with hair
  • hirsutism - excessive hairiness
  • histamine - amine formed from histidine that stimulates gastric secretions and dilates blood vessels; released by the human immune system during allergic reactions
  • histidine - an essential amino acid found in proteins that is important for the growth and repair of tissue
  • histiocyte - a macrophage that is found in connective tissue
  • histiocytosis - a blood disease characterized by an abnormal multiplication of macrophages
  • histocompatibility - condition in which the cells of one tissue can survive in the presence of cells of another tissue
  • histogram - a bar chart representing a frequency distribution; heights of the bars represent observed frequencies
  • histological - of or relating to histology
  • histologist - anatomist who specializes in the microscopic study of animal tissues
  • histology - the branch of biology that studies the microscopic structure of animal or plant tissues
  • history - the discipline that records and interprets past events involving human beings
  • hit - (baseball) a successful stroke in an athletic contest (especially in baseball)
  • hitting - the act of contacting one thing with another
  • hiv - infection by the human immunodeficiency virus
  • hives - an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs
  • hmo - group insurance that entitles members to services of participating hospitals and clinics and physicians
  • hn - a colorless explosive liquid that is volatile and poisonous and foul-smelling
  • hoarse - deep and harsh sounding as if from shouting or illness or emotion
  • hoarseness - a throaty harshness
  • hobnail - a short nail with a thick head; used to protect the soles of boots
  • hodgkin - English physiologist who, with Andrew Huxley, discovered the role of potassium and sodium atoms in the transmission of the nerve impulse (born in 1914)
  • hoffmann - German writer of fantastic tales (1776-1822)
  • hoist - lifting device for raising heavy or cumbersome objects
  • hold - a cell in a jail or prison
  • holder - a holding device
  • holding - the act of retaining something
  • hole - an opening deliberately made in or through something
  • holiday - a day on which work is suspended by law or custom
  • holism - the theory that the parts of any whole cannot exist and cannot be understood except in their relation to the whole
  • holistic - emphasizing the organic or functional relation between parts and the whole
  • hollow - as if echoing in a hollow space
  • home - inside the country
  • homely - lacking in physical beauty or proportion
  • homeopathic - of or relating to the practice of homeopathy
  • homeopathy - a method of treating disease with small amounts of remedies that, in large amounts in healthy people, produce symptoms similar to those being treated
  • homeostasis - (physiology) metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset disrupting changes
  • homo - any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage
  • homoeopathy - a method of treating disease with small amounts of remedies that, in large amounts in healthy people, produce symptoms similar to those being treated
  • homogenise - cause to become equal or homogeneous as by mixing
  • homogenize - cause to become equal or homogeneous as by mixing
  • homograft - tissue or organ transplanted from a donor of the same species but different genetic makeup; recipient's immune system must be suppressed to prevent rejection of the graft
  • homologous - corresponding or similar in position or structure or function or characteristics; especially derived from an organism of the same species
  • homonymous - of or related to or being homonyms
  • homosexual - sexually attracted to members of your own sex
  • homosexuality - a sexual attraction to (or sexual relations with) persons of the same sex
  • homozygous - having identical alleles at corresponding chromosomal loci
  • honey - of something having the color of honey
  • hook - a short swinging punch delivered from the side with the elbow bent
  • hooked - addicted to a drug
  • hooks - large strong hand (as of a fighter)
  • hookworm - parasitic bloodsucking roundworms having hooked mouth parts to fasten to the intestinal wall of human and other hosts
  • hope - one of the three Christian virtues
  • hopkins - Welsh film actor (born in 1937)
  • hordeolum - an infection of the sebaceous gland of the eyelid
  • horizontal - parallel to or in the plane of the horizon or a base line
  • horizontally - in a horizontal direction
  • hormonal - of or relating to or caused by hormones
  • hormone - the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
  • horn - one of the bony outgrowths on the heads of certain ungulates
  • horny - having horns or hornlike projections
  • horror - something that inspires dislike; something horrible
  • horseshoe - U-shaped plate nailed to underside of horse's hoof
  • hose - a flexible pipe for conveying a liquid or gas
  • hospice - a program of medical and emotional care for the terminally ill
  • hospital - a health facility where patients receive treatment
  • hospitalisation - placing in medical care in a hospital
  • hospitalise - admit into a hospital
  • hospitalization - placing in medical care in a hospital
  • hospitalize - admit into a hospital
  • host - an animal or plant that nourishes and supports a parasite; it does not benefit and is often harmed by the association
  • hostile - unsolicited and resisted by the management of the target company ( used of attempts to buy or take control of a business)
  • hostility - a hostile (very unfriendly) disposition
  • hot - marked by excited activity
  • hour - distance measured by the time taken to cover it
  • hourglass - a sandglass that runs for sixty minutes
  • hourly - occurring every hour or payable by the hour
  • hours - an indefinite period of time
  • house - play in which children take the roles of father or mother or children and pretend to interact like adults
  • household - a social unit living together
  • houseman - an advanced student or graduate in medicine gaining supervised practical experience (`houseman' is a British term)
  • housing - structures collectively in which people are housed
  • hovercraft - a craft capable of moving over water or land on a cushion of air created by jet engines
  • however - despite anything to the contrary (usually following a concession)
  • hrt - hormones (estrogen and progestin) are given to postmenopausal women; believed to protect them from heart disease and osteoporosis
  • human - having human form or attributes as opposed to those of animals or divine beings
  • humans - all of the living human inhabitants of the earth
  • humectant - any substance that is added to another substance to keep it moist
  • humerus - bone extending from the shoulder to the elbow
  • humid - containing or characterized by a great deal of water vapor
  • humiliation - depriving one of self-esteem
  • humor - the trait of appreciating (and being able to express) the humorous
  • humoral - of or relating to bodily fluids
  • humorous - full of or characterized by humor
  • humour - the trait of appreciating (and being able to express) the humorous
  • hump - something that bulges out or is protuberant or projects from its surroundings
  • hunchback - a person whose back is hunched because of abnormal curvature of the upper spine
  • hundred - being ten more than ninety
  • hundredth - the ordinal number of one hundred in counting order
  • hunger - strong desire for something (not food or drink)
  • hungry - feeling hunger; feeling a need or desire to eat food
  • huntington - a city of western West Virginia on the Ohio river at the mouth of the Kanawha
  • hurler - (baseball) the person who does the pitching
  • hurt - damaged inanimate objects or their value
  • hurting - a symptom of some physical hurt or disorder
  • husband - a married man; a woman's partner in marriage
  • husk - outer membranous covering of some fruits or seeds
  • husky - deep and harsh sounding as if from shouting or illness or emotion
  • hutchinson - American colonist (born in England) who was banished from Boston for her religious views (1591-1643)
  • hyalin - a glassy translucent material that occurs in hyaline cartilage or in certain skin conditions
  • hyaline - resembling glass in transparency or translucency
  • hyaloid - resembling glass in transparency or translucency
  • hyaluronidase - an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids
  • hybrid - produced by crossbreeding
  • hydatid - cyst filled with liquid; forms as a result of infestation by tapeworm larvae (as in echinococcosis)
  • hydatidosis - infestation with larval echinococci (tapeworms)
  • hydralazine - an antihypertensive drug (trade name Apresoline) that dilates blood vessels; used (often with a diuretic) to treat hypertension and congestive heart failure
  • hydramnios - an abnormality of pregnancy; accumulation of excess amniotic fluid
  • hydrarthrosis - inflammation and swelling of a movable joint because of excess synovial fluid
  • hydrate - any compound that contains water of crystallization
  • hydraulics - study of the mechanics of fluids
  • hydrocarbon - an organic compound containing only carbon and hydrogen
  • hydrocele - disorder in which serous fluid accumulates in a body sac (especially in the scrotum)
  • hydrocephalus - an abnormal condition in which cerebrospinal fluid collects in the ventricles of the brain; in infants it can cause abnormally rapid growth of the head and bulging fontanelles and a small face; in adults the symptoms are primarily neurological
  • hydrochloride - a complex consisting of an organic base in association with hydrogen chloride
  • hydrocolloid - a substance that forms a gel with water
  • hydrocortisone - an adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism
  • hydrogen - a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
  • hydrolysis - a chemical reaction in which water reacts with a compound to produce other compounds; involves the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion from the water
  • hydrometer - a measuring instrument for determining the specific gravity of a liquid or solid
  • hydronephrosis - accumulation of urine in the kidney because of an obstruction in the ureter
  • hydropathy - the internal and external use of water in the treatment of disease
  • hydrophobia - a morbid fear of water
  • hydrops - swelling from excessive accumulation of serous fluid in tissue
  • hydrotherapy - the internal and external use of water in the treatment of disease
  • hydrothorax - accumulation of fluid in the pleural cavity (the space between the lungs and the walls of the chest) often resulting from disease of the heart or kidneys
  • hydroxide - a chemical compound containing the hydroxyl group
  • hydroxyl - the monovalent group -OH in such compounds as bases and some acids and alcohols
  • hydroxyproline - a crystalline amino acid obtained from gelatin or collagen
  • hygiene - the science concerned with the prevention of illness and maintenance of health
  • hygienic - tending to promote or preserve health
  • hygienist - a medical specialist in hygiene
  • hymen - a fold of tissue that partly covers the entrance to the vagina of a virgin
  • hyoid - of or relating to the hyoid bone
  • hyoscine - an alkaloid with anticholinergic effects that is used as a sedative and to treat nausea and to dilate the pupils in ophthalmic procedures
  • hyperacidity - excessive acidity
  • hyperactive - more active than normal
  • hyperactivity - a condition characterized by excessive restlessness and movement
  • hyperacusis - abnormal acuteness of hearing due to increased irritability of the sensory neural mechanism; characterized by intolerance for ordinary sound levels
  • hyperadrenalism - a glandular disorder caused by excessive ACTH resulting in greater than normal functioning of the adrenal gland; characterized by obesity
  • hyperaemia - increased blood in an organ or other body part
  • hyperalimentation - administration of a nutritionally adequate solution through a catheter into the vena cava; used in cases of long-term coma or severe burns or severe gastrointestinal syndromes
  • hypercalcaemia - the presence of abnormally high levels of calcium in the blood; usually the result of excessive bone resorption in hyperparathyroidism or Paget's disease
  • hypercalcinuria - the presence of abnormally high levels of calcium in the urine; usually the result of excessive bone resorption in hyperparathyroidism or osteoporosis
  • hypercapnia - the presence of an abnormally high level of carbon dioxide in the circulating blood
  • hyperemesis - severe and excessive vomiting
  • hyperextension - greater than normal extension
  • hyperglycaemia - abnormally high blood sugar usually associated with diabetes
  • hyperhidrosis - excessive and profuse perspiration
  • hyperlipidaemia - presence of excess lipids in the blood
  • hypermetropia - abnormal condition in which vision for distant objects is better than for near objects
  • hyperopia - abnormal condition in which vision for distant objects is better than for near objects
  • hyperparathyroidism - excessive secretion of parathyroid hormone resulting in abnormally high levels of calcium in the blood; can affect many systems of the body (especially causing bone resorption and osteoporosis)
  • hyperpiesia - persistent and pathological high blood pressure for which no specific cause can be found
  • hyperpiesis - persistent and pathological high blood pressure for which no specific cause can be found
  • hyperpituitarism - excessive activity of the pituitary gland (especially overactivity of the anterior lobe which leads to excess secretion of growth hormone)
  • hyperplasia - abnormal increase in number of cells
  • hyperpyrexia - extremely high fever (especially in children)
  • hypersecretion - excessive secretion
  • hypersensitive - having an allergy or peculiar or excessive susceptibility (especially to a specific factor)
  • hypersensitivity - extreme sensitivity
  • hypersplenism - enlarged spleen and a decrease in one or more types of blood cells; associated with many disorders
  • hypertension - a common disorder in which blood pressure remains abnormally high (a reading of 140/90 mm Hg or greater)
  • hypertensive - having abnormally high blood pressure
  • hyperthermia - abnormally high body temperature; sometimes induced (as in treating some forms of cancer)
  • hyperthyroidism - an overactive thyroid gland; pathologically excessive production of thyroid hormones or the condition resulting from excessive production of thyroid hormones
  • hypertonia - (of muscular tissue) the state of being hypertonic
  • hypertonic - (of a solution) having a higher osmotic pressure than a comparison solution
  • hypertrophy - abnormal enlargement of a body part or organ
  • hyperventilate - breathe excessively hard and fast
  • hyperventilation - an increased depth and rate of breathing greater than demanded by the body needs; can cause dizziness and tingling of the fingers and toes and chest pain if continued
  • hypervitaminosis - an abnormal condition resulting from taking vitamins excessively; can be serious for vitamins A or D or K
  • hypervolaemia - a blood disorder consisting of an increase in the volume of circulating blood
  • hypnosis - a state that resembles sleep but that is induced by suggestion
  • hypnotherapy - the use of hypnosis in psychotherapy
  • hypnotic - attracting and holding interest as if by a spell
  • hypnotise - induce hypnosis in
  • hypnotism - the act of inducing hypnosis
  • hypnotist - a person who induces hypnosis
  • hypnotize - induce hypnosis in
  • hypo - a compound used as a fixing agent in photographic developing
  • hypocalcaemia - abnormally low level of calcium in the blood; associated with hypoparathyroidism or kidney malfunction or vitamin D deficiency
  • hypocapnia - a state in which the level of carbon dioxide in the blood is lower than normal; can result from deep or rapid breathing
  • hypochondria - chronic and abnormal anxiety about imaginary symptoms and ailments
  • hypochondriac - suffering from hypochondria
  • hypochondrium - the upper region of the abdomen just below the lowest ribs on either side of the epigastrium
  • hypodermic - relating to or located below the epidermis
  • hypoglossal - supplies intrinsic muscles of the tongue and other tongue muscles
  • hypoglycaemia - abnormally low blood sugar usually resulting from excessive insulin or a poor diet
  • hypoglycaemic - of or relating to hypoglycemia
  • hypoparathyroidism - inadequate secretion of parathyroid hormone resulting in abnormally low levels of calcium in the blood
  • hypophyseal - of or relating to the hypophysis
  • hypophysectomy - surgical removal of the pituitary gland
  • hypophysis - the master gland of the endocrine system; located at the base of the brain
  • hypoplasia - underdevelopment of an organ because of a decrease in the number of cells
  • hypospadias - an abnormal condition in males in which the urethra opens on the under surface of the penis
  • hypostasis - (metaphysics) essential nature or underlying reality
  • hypotension - abnormally low blood pressure
  • hypotensive - having abnormally low blood pressure
  • hypothalamic - of or relating to the hypothalamus
  • hypothalamus - a basal part of the diencephalon governing autonomic nervous system
  • hypothermia - subnormal body temperature
  • hypothermic - of or relating to or affected by hypothermia
  • hypothesis - a tentative theory about the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena
  • hypothyroidism - an underactive thyroid gland; a glandular disorder resulting from insufficient production of thyroid hormones
  • hypotonia - (of muscular tissue) the state of being hypotonic
  • hypotonic - (of a solution) having a lower osmotic pressure than a comparison solution
  • hypovitaminosis - any of several diseases caused by deficiency of one or more vitamins
  • hypoxia - a very strong drive resulting from a deficiency of available oxygen in the blood and bodily tissues (short of anoxia)
  • hysterectomy - surgical removal of the uterus
  • hysteria - excessive or uncontrollable fear
  • hysterical - marked by excessive or uncontrollable emotion
  • hysterically - in a hysterical manner
  • hysterics - an attack of hysteria
  • hysteroscopy - visual examination of the uterus and uterine lining using an endoscope inserted through the vagina
  • hysterotomy - surgical incision into the uterus (as in cesarean section)

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

I

  • i - the 9th letter of the Roman alphabet
  • iatrogenic - induced by a physician's words or therapy (used especially of a complication resulting from treatment)
  • ibuprofen - a nonsteroidal anti-inflammatory medicine (trade names Advil and Motrin and Nuprin) used to relieve the pain of arthritis and as an analgesic and antipyretic
  • ice - a frozen dessert with fruit flavoring (especially one containing no milk)
  • ichthyosis - any of several congenital diseases in which the skin is fishlike (dry and scaly)
  • icsh - a gonadotropic hormone that is secreted by the anterior pituitary; stimulates ovulation in female mammals and stimulates androgen release in male mammals
  • icteric - affected by jaundice which causes yellowing of skin etc
  • icterus - type genus of the Icteridae
  • ictus - a sudden occurrence (or recurrence) of a disease
  • icu - a hospital unit staffed and equipped to provide intensive care
  • idea - the content of cognition; the main thing you are thinking about
  • ideation - the process of forming and relating ideas
  • identical - (of twins) derived from a single egg or ovum
  • identifiable - capable of being identified
  • identification - the attribution to yourself (consciously or unconsciously) of the characteristics of another person (or group of persons)
  • identified - having the identity known or established
  • identifier - a symbol that establishes the identity of the one bearing it
  • identify - consider to be equal or the same
  • identifying - serving to distinguish or identify a species or group
  • identity - the distinct personality of an individual regarded as a persisting entity
  • idiocy - extreme mental retardation
  • idiopathic - (of diseases) arising from an unknown cause
  • idiopathy - any disease arising from internal dysfunctions of unknown cause
  • idiosyncrasy - a behavioral attribute that is distinctive and peculiar to an individual
  • idiot - a person of subnormal intelligence
  • ie - that is to say; in other words
  • ig - a class of proteins produced in lymph tissue in vertebrates and that function as antibodies in the immune response
  • iga - one of the most common of the five major classes of immunoglobulins; the chief antibody in the membranes of the gastrointestinal and respiratory tracts
  • igd - one of the five major classes of immunoglobulins; present in blood serum in small amounts
  • ige - one of the five major classes of immunoglobulins; present primarily in the skin and mucous membranes
  • igg - one of the five major classes of immunoglobulins; the main antibody defense against bacteria
  • igm - one of the five major classes of immunoglobulins; involved in fighting blood infections and in triggering production of immunoglobulin G
  • ignore - be ignorant of or in the dark about
  • il - a Midwest state in north-central United States
  • ileitis - inflammation of the ileum
  • ileostomy - surgical procedure that creates an opening from the ileum through the abdominal wall to function as an anus; performed in cases of cancer of the colon or ulcerative colitis
  • ileum - the part of the small intestine between the jejunum and the cecum
  • ileus - blockage of the intestine (especially the ileum) that prevents the contents of the intestine from passing to the lower bowel
  • iliac - of or relating to the ilium
  • ilium - the upper and widest of the three bones making up the hipbone
  • ill - presaging ill fortune
  • illegal - prohibited by law or by official or accepted rules
  • illegally - in an illegal manner
  • illness - impairment of normal physiological function affecting part or all of an organism
  • illusion - something many people believe that is false
  • illustration - a visual representation (a picture or diagram) that is used make some subject more pleasing or easier to understand
  • image - the general impression that something (a person or organization or product) presents to the public
  • imagery - the ability to form mental images of things or events
  • imaginary - not based on fact; dubious
  • imagination - the formation of a mental image of something that is not perceived as real and is not present to the senses
  • imagine - form a mental image of something that is not present or that is not the case
  • imagined - not based on fact; dubious
  • imaging - (medicine) obtaining pictures of the interior of the body
  • imbalance - a lack of balance or state of disequilibrium
  • imipramine - a tricyclic antidepressant (trade names Imavate and Tofranil) used to treat clinical depression
  • imitation - not genuine or real; being an imitation of the genuine article
  • immature - lacking in development
  • immaturity - not having reached maturity
  • immediate - having no intervening medium
  • immediately - without delay or hesitation; with no time intervening
  • immersion - a form of baptism in which part or all of a person's body is submerged
  • imminent - close in time; about to occur
  • immiscible - (chemistry, physics) incapable of mixing
  • immobile - not capable of movement or of being moved
  • immobilisation - the act of limiting movement or making incapable of movement
  • immobilise - cause to be unable to move
  • immobility - the quality of not moving
  • immobilization - the act of limiting movement or making incapable of movement
  • immobilize - cause to be unable to move
  • immoral - deliberately violating accepted principles of right and wrong
  • immovable - not able or intended to be moved
  • immune - (usually followed by `to') not affected by a given influence
  • immunisation - the act of making immune (especially by inoculation)
  • immunise - perform vaccinations or produce immunity in by inoculation
  • immunised - having been rendered unsusceptible to a disease
  • immunity - the quality of being unaffected by something
  • immunization - the act of making immune (especially by inoculation)
  • immunize - perform vaccinations or produce immunity in by inoculation
  • immunoassay - identification of a substance (especially a protein) by its action as an antigen
  • immunocompetence - the ability to develop an immune response following exposure to an antigen
  • immunocompromised - unable to develop a normal immune response usually because of malnutrition or immunodeficiency or immunosuppressive therapy
  • immunodeficiency - immunological disorder in which some part of the body's immune system is inadequate and resistance to infectious diseases is reduced
  • immunodeficient - incapable of developing an immune response following exposure to an antigen
  • immunoelectrophoresis - electrophoresis to separate antigens and antibodies
  • immunogenic - possessing the ability to elicit an immune response
  • immunogenicity - the property of eliciting an immune response
  • immunoglobulin - a class of proteins produced in lymph tissue in vertebrates and that function as antibodies in the immune response
  • immunological - of or relating to immunology
  • immunologically - from the point of view of immunology
  • immunologist - a medical scientist who specializes in immunology
  • immunology - the branch of medical science that studies the body's immune system
  • immunosuppressant - a drug that lowers the body's normal immune response
  • immunosuppression - lowering the body's normal immune response to invasion by foreign substances; can be deliberate (as in lowering the immune response to prevent rejection of a transplanted organ) or incidental (as a side effect of radiotherapy or chemotherapy for cancer)
  • immunosuppressive - of or relating to a substance that lowers the body's normal immune response and induces immunosuppression
  • immunotherapy - therapy designed to produce immunity to a disease or to enhance resistance by the immune system
  • impact - the striking of one body against another
  • impacted - wedged or packed in together
  • impaction - a disorder in which a tooth is so crowded in its socket that it cannot erupt normally
  • impair - make worse or less effective
  • impaired - diminished in strength, quality, or utility
  • impairment - damage that results in a reduction of strength or quality
  • impalpable - imperceptible to the senses or the mind
  • impartial - showing lack of favoritism
  • impatient - (usually followed by `to') full of eagerness
  • impediment - any structure that makes progress difficult
  • imperative - requiring attention or action
  • imperfect - not perfect; defective or inadequate
  • imperforate - not perforated; having no opening
  • impermeable - preventing especially liquids to pass or diffuse through
  • impetigo - a very contagious infection of the skin; common in children; localized redness develops into small blisters that gradually crust and erode
  • implant - a prosthesis placed permanently in tissue
  • implantation - a surgical procedure that places something in the human body
  • implanted - (used especially of ideas or principles) deeply rooted; firmly fixed or held
  • implement - instrumentation (a piece of equipment or tool) used to effect an end
  • implementation - the act of implementing (providing a practical means for accomplishing something); carrying into effect
  • implemented - forced or compelled or put in force
  • implicated - culpably involved
  • importance - the quality of being important and worthy of note
  • important - of great significance or value
  • impossible - not capable of occurring or being accomplished or dealt with
  • impotence - an inability (usually of the male animal) to copulate
  • impotent - lacking power or ability
  • impregnate - make pregnant
  • impregnation - the process of totally saturating something with a substance
  • impress - the act of coercing someone into government service
  • impression - the act of pressing one thing on or into the surface of another
  • improve - get better
  • improved - become or made better in quality
  • improvement - the act of improving something
  • improving - getting higher or more vigorous
  • impulse - the act of applying force suddenly
  • impure - (used of persons or behaviors) immoral or obscene
  • impurity - the condition of being impure
  • in - currently fashionable
  • inability - lacking the power to perform
  • inaccessible - capable of being reached only with great difficulty or not at all
  • inactive - not active physically or mentally
  • inactivity - being inactive; being less active
  • inadequate - (sometimes followed by `to') not meeting the requirements especially of a task
  • inadequately - in an inadequate manner or to an inadequate degree
  • inadvertent - without intention (especially resulting from heedless action)
  • inanition - exhaustion resulting from lack of food
  • inappropriate - not suitable for a particular occasion etc
  • inarticulate - without or deprived of the use of speech or words
  • inattentiveness - the trait of not being considerate and thoughtful of others
  • inborn - normally existing at birth
  • inbreeding - the act of mating closely related individuals
  • incapable - not meeting requirements
  • incapacitate - injure permanently
  • incapacitated - lacking in or deprived of strength or power
  • incest - sexual intercourse between persons too closely related to marry (as between a parent and a child)
  • incidence - the striking of a light beam on a surface
  • incident - falling or striking of light rays on something
  • incipient - only partly in existence; imperfectly formed
  • incise - make an incision into by carving or cutting
  • incised - cut into with a sharp instrument
  • incision - the cutting of or into body tissues or organs (especially by a surgeon as part of an operation)
  • incisor - a tooth for cutting or gnawing; located in the front of the mouth in both jaws
  • inclined - at an angle to the horizontal or vertical position
  • include - add as part of something else; put in as part of a set, group, or category
  • included - enclosed in the same envelope or package
  • inclusion - the act of including
  • inclusive - including much or everything; and especially including stated limits
  • incoherent - unable to express yourself clearly or fluently
  • incompatibility - the quality of being unable to exist or work in congenial combination
  • incompatible - not compatible
  • incompetence - lack of physical or intellectual ability or qualifications
  • incompetent - not qualified or suited for a purpose
  • incomplete - not complete or total; not completed
  • incontinence - involuntary urination or defecation
  • incontinent - not having control over urination and defecation
  • incoordination - a lack of coordination of movements
  • incorrect - not correct; not in conformity with fact or truth
  • incorrectly - in an incorrect manner
  • increase - the act of increasing something
  • increased - made greater in size or amount or degree
  • increasing - becoming greater or larger
  • increasingly - advancing in amount or intensity
  • incubation - maintaining something at the most favorable temperature for its development
  • incubator - apparatus consisting of a box designed to maintain a constant temperature by the use of a thermostat; used for chicks or premature infants
  • incurable - unalterable in disposition or habits
  • incurably - in a manner impossible to cure
  • incus - the ossicle between the malleus and the stapes
  • independence - the successful ending of the American Revolution
  • independent - not dependent on or conditioned by or relative to anything else
  • independently - on your own; without outside help
  • inderal - the first beta blocker (trade name Inderal) used in treating hypertension and angina pectoris and essential tremor
  • index - the finger next to the thumb
  • indian - of or pertaining to American Indians or their culture or languages
  • indicate - indicate a place, direction, person, or thing; either spatially or figuratively
  • indication - something (as a course of action) that is indicated as expedient or necessary
  • indicator - a device for showing the operating condition of some system
  • indigenous - originating where it is found
  • indigestion - a disorder of digestive function characterized by discomfort or heartburn or nausea
  • indigo - having a color between blue and violet
  • indirect - not direct in spatial dimension; not leading by a straight line or course to a destination
  • indisposed - (usually followed by `to') strongly opposed
  • indisposition - a slight illness
  • individual - being or characteristic of a single thing or person
  • individualise - make personal or more personal
  • individualised - made for or directed or adjusted to a particular individual
  • individualize - make or mark or treat as individual
  • individually - apart from others
  • indolent - (of tumors e.g) slow to heal or develop and usually painless
  • indomethacin - a nonsteroidal anti-inflammatory drug (trade name Indocin)
  • indrawn - tending to reserve or introspection
  • induce - reason or establish by induction
  • induced - brought about or caused; not spontaneous
  • inducing - act of bringing about a desired result
  • induction - the act of bringing about something (especially at an early time)
  • induration - any pathological hardening or thickening of tissue
  • industrial - suitable to stand up to hard wear
  • industry - the organized action of making of goods and services for sale
  • indwelling - existing or residing as an inner activating spirit or force or principle
  • inebriation - a temporary state resulting from excessive consumption of alcohol
  • ineffective - lacking the ability or skill to perform effectively; inadequate
  • inequality - lack of equality
  • inert - slow and apathetic
  • inertia - (physics) the tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force
  • infancy - the earliest state of immaturity
  • infant - a very young child (birth to 1 year) who has not yet begun to walk or talk
  • infanticide - murdering an infant
  • infantile - being or befitting or characteristic of an infant
  • infantilism - infantile behavior in mature persons
  • infarct - localized necrosis resulting from obstruction of the blood supply
  • infarction - localized necrosis resulting from obstruction of the blood supply
  • infect - contaminate with a disease or microorganism
  • infected - containing or resulting from disease-causing organisms
  • infection - (international law) illegality that taints or contaminates a ship or cargo rendering it liable to seizure
  • infectious - easily spread
  • infective - able to cause disease
  • inferior - of or characteristic of low rank or importance
  • inferiority - an inferior quality
  • infertile - incapable of reproducing
  • infertility - the state of being unable to produce offspring; in a woman it is an inability to conceive; in a man it is an inability to impregnate
  • infest - invade in great numbers
  • infestation - a swarm of insects that attack plants
  • infested - (often followed by `with' or used in combination) troubled by or encroached upon in large numbers
  • infiltrate - pass through an enemy line; in a military conflict
  • infiltration - a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection)
  • infinitely - continuing forever without end
  • infirm - lacking firmness of will or character or purpose
  • infirmary - a health facility where patients receive treatment
  • infirmity - the state of being weak in health or body (especially from old age)
  • inflame - become inflamed; get sore
  • inflamed - adorned with tongues of flame
  • inflammation - arousal to violent emotion
  • inflammatory - characterized or caused by inflammation
  • inflatable - designed to be filled with air or gas
  • inflate - fill with gas or air
  • inflated - expanded by (or as if by) gas or air
  • inflation - the act of filling something with air
  • influence - causing something without any direct or apparent effort
  • influenza - an acute febrile highly contagious viral disease
  • inform - give character or essence to
  • informal - not formal
  • informally - without formality
  • information - (communication theory) a numerical measure of the uncertainty of an outcome
  • informed - having much knowledge or education
  • infra - (in writing) see below
  • infrared - having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end
  • infrequently - not many times
  • infundibulum - any of various funnel-shaped parts of the body (but especially the hypophyseal stalk)
  • infuse - introduce into the body through a vein, for therapeutic purposes
  • infusion - the act of infusing or introducing a certain modifying element or quality
  • ingesta - solid and liquid nourishment taken into the body through the mouth
  • ingestion - the process of taking food into the body through the mouth (as by eating)
  • ingredient - a component of a mixture or compound
  • ingrowing - growing abnormally into the flesh
  • ingrown - growing abnormally into the flesh
  • inguinal - of or relating to or near the groin
  • inh - antibacterial drug (trade name Nydrazid) used to treat tuberculosis
  • inhalant - inhaling or serving for inhalation
  • inhalation - the act of inhaling; the drawing in of air (or other gases) as in breathing
  • inhale - draw in (air)
  • inhaler - a dispenser that produces a chemical vapor to be inhaled in order to relieve nasal congestion
  • inherent - in the nature of something though not readily apparent
  • inherit - obtain from someone after their death
  • inheritance - hereditary succession to a title or an office or property
  • inherited - tending to occur among members of a family usually by heredity
  • inhibit - limit the range or extent of
  • inhibition - (psychology) the conscious exclusion of unacceptable thoughts or desires
  • inhibitor - a substance that retards or stops an activity
  • inhibitory - restrictive of action
  • inion - the craniometric point that is the most prominent point at the back of the head (at the occipital protuberance)
  • initial - occurring at the beginning
  • initially - at the beginning
  • initiate - people who have been introduced to the mysteries of some field or activity
  • inject - give an injection to
  • injection - the forceful insertion of a substance under pressure
  • injure - cause injuries or bodily harm to
  • injured - usually used of physical or mental injury to persons
  • injury - an act that injures someone
  • ink - dark protective fluid ejected into the water by cuttlefish and other cephalopods
  • inlay - a decoration made by fitting pieces of wood into prepared slots in a surface
  • inlet - an arm off of a larger body of water (often between rocky headlands)
  • inn - a hotel providing overnight lodging for travelers
  • innards - internal organs collectively (especially those in the abdominal cavity)
  • innate - present at birth but not necessarily hereditary; acquired during fetal development
  • inner - inside or closer to the inside of the body
  • innermost - situated or occurring farthest within
  • innervate - stimulate to action
  • innervation - the distribution of nerve fibers to an organ or body region
  • innocent - (used of things) lacking sense or awareness
  • innovative - being or producing something like nothing done or experienced or created before
  • inoculant - a substance (a virus or toxin or immune serum) that is introduced into the body to produce or increase immunity to a particular disease
  • inoculate - impregnate with the virus or germ of a disease in order to render immune
  • inoculating - the act of protecting against disease by introducing a vaccine into the body to induce immunity
  • inoculation - taking a vaccine as a precaution against contracting a disease
  • inoculum - a substance (a virus or toxin or immune serum) that is introduced into the body to produce or increase immunity to a particular disease
  • inoperable - not suitable for surgery
  • inorganic - relating or belonging to the class of compounds not having a carbon basis
  • inpatient - a patient who is residing in the hospital where he is being treated
  • inquest - an inquiry into the cause of an unexpected death
  • inquiry - a systematic investigation of a matter of public interest
  • insane - afflicted with or characteristic of mental derangement
  • insanitary - not sanitary or healthful
  • insanity - relatively permanent disorder of the mind
  • insect - small air-breathing arthropod
  • insecticide - a chemical used to kill insects
  • insecure - lacking self-confidence or assurance
  • insecurity - the anxiety you experience when you feel vulnerable and insecure
  • insemination - the introduction of semen into the genital tract of a female
  • insensible - unresponsive to stimulation
  • insert - an artifact that is inserted or is to be inserted
  • insertion - the act of putting one thing into another
  • inside - away from the outer edge
  • insidious - working or spreading in a hidden and usually injurious way
  • insight - grasping the inner nature of things intuitively
  • insoluble - without hope of solution
  • insomnia - an inability to sleep; chronic sleeplessness
  • insomniac - experiencing or accompanied by sleeplessness
  • inspect - look over carefully
  • inspection - a formal or official examination
  • inspiration - arousing to a particular emotion or action
  • inspiratory - pertaining to the drawing in phase respiration
  • inspire - supply the inspiration for
  • inspissation - the process of thickening by dehydration
  • instability - the quality or attribute of being unstable and irresolute
  • instantly - without any delay
  • instead - in place of, or as an alternative to
  • instep - the part of a shoe or stocking that covers the arch of the foot
  • instil - enter drop by drop
  • instill - enter drop by drop
  • instillation - the introduction of a liquid (by pouring or injection) drop by drop
  • instinct - (followed by `with')deeply filled or permeated
  • instinctive - unthinking; prompted by (or as if by) instinct
  • institute - an association organized to promote art or science or education
  • institution - an establishment consisting of a building or complex of buildings where an organization for the promotion of some cause is situated
  • institutional - organized as or forming an institution
  • institutionalise - cause to be admitted; of persons to an institution
  • institutionalize - cause to be admitted; of persons to an institution
  • instruction - (computer science) a line of code written as part of a computer program
  • instructions - a manual usually accompanying a technical device and explaining how to install or operate it
  • instrument - the means whereby some act is accomplished
  • instrumental - relating to or designed for or performed on musical instruments
  • insufficiency - lack of an adequate quantity or number
  • insufficient - of a quantity not able to fulfill a need or requirement
  • insufflate - blow or breathe hard on or into
  • insufflation - an act of blowing or breathing on or into something
  • insulin - hormone secreted by the isles of Langerhans in the pancreas; regulates storage of glycogen in the liver and accelerates oxidation of sugar in cells
  • insult - a deliberately offensive act or something producing the effect of deliberate disrespect
  • insurance - promise of reimbursement in the case of loss; paid to people or companies so concerned about hazards that they have made prepayments to an insurance company
  • intact - undamaged in any way; whole
  • intake - an opening through which fluid is admitted to a tube or container
  • integrated - not segregated; designated as available to all races or groups
  • integrative - combining and coordinating diverse elements into a whole
  • integument - an outer protective covering such as the skin of an animal or a cuticle or seed coat or rind or shell
  • intellect - knowledge and intellectual ability
  • intellectual - appealing to or using the intellect
  • intelligence - the operation of gathering information about an enemy
  • intelligent - having the capacity for thought and reason especially to a high degree
  • intelligible - well articulated or enunciated, and loud enough to be heard distinctly
  • intelligibly - in an intelligible manner
  • intended - future; betrothed
  • intense - (of color) having the highest saturation
  • intensifying - increasing in strength or intensity
  • intensity - high level or degree; the property of being intense
  • intensive - characterized by a high degree or intensity; often used as a combining form
  • intention - an act of intending; a volition that you intend to carry out
  • intentionally - with intention; in an intentional manner
  • inter - place in a grave or tomb
  • interact - act together or towards others or with others
  • interaction - a mutual or reciprocal action; interacting
  • interactive - used especially of drugs or muscles that work together so the total effect is greater than the sum of the two (or more)
  • interbreed - breed animals or plants using parents of different races and varieties
  • intercellular - located between cells
  • intercostal - located or occurring between the ribs
  • intercourse - communication between individuals
  • interdisciplinary - drawing from or characterized by participation of two or more fields of study
  • interest - the power of attracting or holding one's attention (because it is unusual or exciting etc.)
  • interested - having or showing interest; especially curiosity or fascination or concern
  • interfere - come between so as to be hindrance or obstacle
  • interfering - intrusive in a meddling or offensive manner
  • interferon - an antiviral protein produced by cells that have been invaded by a virus; inhibits replication of the virus
  • interior - of or coming from the middle of a region or country
  • interleukin - any of several lymphokines that promote macrophages and killer T cells and B cells and other components of the immune system
  • interlobular - between lobes or lobules
  • intermediate - lying between two extremes in time or space or degree
  • intermittent - stopping and starting at irregular intervals
  • intern - an advanced student or graduate in medicine gaining supervised practical experience (`houseman' is a British term)
  • internal - happening or arising or located within some limits or especially surface
  • internally - on or from the inside
  • international - concerning or belonging to all or at least two or more nations
  • internationally - throughout the world
  • internist - a specialist in internal medicine
  • interoceptor - any receptor that responds to stimuli inside the body
  • interpret - make sense of; assign a meaning to
  • interpreted - understood in a certain way; made sense of
  • interrupt - a signal that temporarily stops the execution of a program so that another procedure can be carried out
  • interrupted - discontinued temporarily
  • intersex - one having both male and female sexual characteristics and organs; at birth an unambiguous assignment of male or female cannot be made
  • interstice - small opening between things
  • interstitial - of or relating to interstices
  • intertrigo - chafing between two skin surfaces that are in contact (as in the armpit or under the breasts or between the thighs)
  • interval - the distance between things
  • intervening - standing between or separating two objects or areas
  • intervention - (law) a proceeding that permits a person to enter into a lawsuit already in progress; admission of person not an original party to the suit so that person can protect some right or interest that is allegedly affected by the proceedings
  • intervertebral - pertaining to the space between two vertebrae
  • intestinal - of or relating to or inside the intestines
  • intestine - the part of the alimentary canal between the stomach and the anus
  • intima - the innermost membrane of an organ (especially the inner lining of an artery or vein or lymphatic vessel)
  • intolerance - impatience with annoyances
  • intoxicant - able to intoxicate
  • intoxicate - have an intoxicating effect on, of a drug
  • intoxicated - stupefied or excited by a chemical substance (especially alcohol)
  • intoxication - excitement and elation beyond the bounds of sobriety
  • intracellular - located or occurring within a cell or cells
  • intracerebral - within the brain
  • intracranial - within the skull
  • intractable - not tractable; difficult to manage or mold
  • intracutaneous - relating to areas between the layers of the skin
  • intradermal - relating to areas between the layers of the skin
  • intradermic - relating to areas between the layers of the skin
  • intramural - carried on within the bounds of an institution or community
  • intramuscular - within a muscle
  • intrauterine - within the womb
  • intravenous - within or by means of a vein
  • intravenously - in an intravenous manner
  • intraventricular - within the system of ventricles in the brain
  • intricate - having many complexly arranged elements; elaborate
  • intrinsic - situated within or belonging solely to the organ or body part on which it acts
  • intro - a brief introductory passage to a piece of popular music
  • introduce - put before (a body)
  • introduction - the act of beginning something new
  • introitus - entrance or opening to a hollow organ or tube (especially the vaginal opening)
  • introjection - (psychology) unconscious internalization of aspects of the world (especially aspects of persons) within the self in such a way that the internalized representation takes over the psychological functions of the external objects
  • introspection - the contemplation of your own thoughts and desires and conduct
  • introversion - (psychology) an introverted disposition; concern with one's own thoughts and feelings
  • introvert - (psychology) a person who tends to shrink from social contacts and to become preoccupied with their own thoughts
  • introverted - given to examining own sensory and perceptual experiences
  • intubate - introduce a cannula or tube into
  • intubation - the insertion of a cannula or tube into a hollow body organ
  • intumescence - the swelling of certain substances when they are heated (often accompanied by release of water)
  • intussusception - (biology) growth in the surface area of a cell by the deposit of new particles between existing particles in the cell wall
  • inunction - anointing as part of a religious ceremony or healing ritual
  • invade - march aggressively into another's territory by military force for the purposes of conquest and occupation
  • invagination - the folding in of an outer layer so as to form a pocket in the surface
  • invalid - no longer valid
  • invalidity - illogicality as a consequence of having a conclusion that does not follow from the premisses
  • invasion - the act of invading; the act of an army that invades for conquest or plunder
  • invasive - marked by a tendency to spread especially into healthy tissue
  • invent - come up with (an idea, plan, explanation, theory, or principle) after a mental effort
  • invented - formed or conceived by the imagination
  • invention - the act of inventing
  • inventor - someone who is the first to think of or make something
  • inventory - making an itemized list of merchandise or supplies on hand
  • inverse - reversed (turned backward) in order or nature or effect
  • inversion - the act of turning inside out
  • invertase - an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose
  • inverted - being in such a position that top and bottom are reversed
  • investigate - conduct an inquiry or investigation of
  • investigating - the work of inquiring into something thoroughly and systematically
  • investigation - the work of inquiring into something thoroughly and systematically
  • investigative - designed to find information or ascertain facts
  • investment - the ceremonial act of clothing someone in the insignia of an office; the formal promotion of a person to an office or rank
  • inveterate - having a habit of long standing
  • invisible - impossible or nearly impossible to see; imperceptible by the eye
  • involuntary - not subject to the control of the will
  • involution - the action of enfolding something
  • involve - make complex or intricate or complicated
  • involved - emotionally involved
  • involvement - a connection of inclusion or containment
  • inward - relating to or existing in the mind or thoughts
  • inwards - toward the center or interior
  • iodine - a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)
  • ion - a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
  • ionise - convert into ions
  • ionised - converted totally or partly into ions
  • ionize - convert into ions
  • iontophoresis - therapy that uses a local electric current to introduce the ions of a medicine into the tissues
  • ip - the sciences concerned with gathering, manipulating, storing, retrieving, and classifying recorded information
  • ipecac - a medicinal drug used to evoke vomiting (especially in cases of drug overdose or poisoning)
  • ipsilateral - on or relating to the same side (of the body)
  • iq - a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to their chronological age (multiplied by 100)
  • ireland - an island comprising the republic of Ireland and Northern Ireland
  • iridectomy - surgical removal of part of the iris of the eye
  • iridocyclitis - inflammation of the iris and ciliary body of the eye
  • iridotomy - a surgical procedure that makes an incision in the iris of the eye in order to enlarge the pupil or to treat glaucoma
  • iris - diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
  • irish - of or relating to or characteristic of Ireland or its people
  • iritis - inflammation of the iris
  • iron - extremely robust
  • irradiation - (Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus
  • irrational - not consistent with or using reason
  • irreducible - incapable of being made smaller or simpler
  • irregular - not occurring at expected times
  • irregularity - not characterized by a fixed principle or rate; at irregular intervals
  • irregularly - in an irregular manner
  • irreparable - impossible to repair, rectify, or amend
  • irreversible - incapable of being reversed
  • irrigate - supply with a constant flow or sprinkling of some liquid, for the purpose of cooling, cleansing, or disinfecting
  • irrigation - (medicine) cleaning a wound or body organ by flushing or washing out with water or a medicated solution
  • irritability - an irritable petulant feeling
  • irritable - abnormally sensitive to a stimulus
  • irritant - something that causes irritation and annoyance
  • irritate - excite to an abnormal condition, of chafe or inflame
  • irritated - feeling inflammation or other discomfort (especially in a part of the body)
  • irritating - causing physical discomfort
  • irritation - the psychological state of being irritated or annoyed
  • irving - United States writer of darkly humorous novels (born in 1942)
  • ischaemia - local anemia in a given body part sometimes resulting from vasoconstriction or thrombosis or embolism
  • ischaemic - relating to or affected by ischemia
  • ischia - a volcanic island (part of Campania) in the Tyrrhenian Sea at the north end of the Bay of Naples
  • ischium - one of the three sections of the hipbone; situated below the ilium
  • islamic - of or relating to or supporting Islamism
  • islet - a small island
  • isoantibody - an antibody that occurs naturally against foreign tissues from a person of the same species
  • isolate - place or set apart
  • isolated - not close together in time
  • isolation - the act of isolating something; setting something apart from others
  • isoleucine - an essential amino acid found in proteins; isomeric with leucine
  • isometric - of or involving muscular contraction in which tension increases while length remains constant
  • isometrics - muscle-building exercises (or a system of musclebuilding exercises) involving muscular contractions against resistance without movement (the muscles contracts but the length of the muscle does not change)
  • isoniazid - antibacterial drug (trade name Nydrazid) used to treat tuberculosis
  • isoproterenol - drug (trade name Isuprel) used to treat bronchial asthma and to stimulate the heart
  • isosorbide - drug (trade name Isordil) used to treat angina pectoris and congestive heart failure
  • isotonic - of or involving muscular contraction in which tension is constant while length changes
  • isotope - one of two or more atoms with the same atomic number but with different numbers of neutrons
  • issue - the act of providing an item for general use or for official purposes (usually in quantity)
  • isthmus - a cord-like tissue connecting two larger parts of an anatomical structure
  • it - the branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
  • italian - of or pertaining to or characteristic of Italy or its people or culture or language
  • italy - a republic in southern Europe on the Italian Peninsula; was the core of the Roman Republic and the Roman Empire between the 4th century BC and the 5th century AD
  • itch - an irritating cutaneous sensation that produces a desire to scratch
  • itching - an irritating cutaneous sensation that produces a desire to scratch
  • itchy - causing an irritating cutaneous sensation; being affect with an itch
  • item - (used when listing or enumerating items) also
  • iud - contraceptive device consisting of a piece of bent plastic or metal that is inserted through the vagina into the uterus
  • iv - administration of nutrients through a vein
  • ivp - performing pyelography with intravenous injection of a contrast medium
  • ivy - Old World vine with lobed evergreen leaves and black berrylike fruits
  • jab - a quick short straight punch
  • jacket - a short coat
  • jackson - a town in south central Michigan
  • jacksonian - of or pertaining to Andrew Jackson or his presidency or his concepts of popular democracy
  • jacob - (Old Testament) son of Isaac; brother of Esau; father of the twelve patriarchs of Israel; Jacob wrestled with God and forced God to bless him, so God gave Jacob the new name of Israel (meaning `one who has been strong against God')
  • jactitation - (pathology) extremely restless tossing and twitching usually by a person with a severe illness
  • jag - a bout of drinking or drug taking
  • james - a river that rises in North Dakota and flows southward across South Dakota to the Missouri
  • japan - lacquer with a durable glossy black finish, originally from the orient
  • japanese - of or relating to or characteristic of Japan or its people or their culture or language
  • jar - a vessel (usually cylindrical) with a wide mouth and without handles
  • jargon - specialized technical terminology characteristic of a particular subject
  • jaundice - yellowing of the skin and the whites of the eyes caused by an accumulation of bile pigment (bilirubin) in the blood; can be a symptom of gallstones or liver infection or anemia
  • jaw - holding device consisting of one or both of the opposing parts of a tool that close to hold an object
  • jawbone - the jaw in vertebrates that is hinged to open the mouth
  • jealousy - zealous vigilance
  • jean - (usually plural) close-fitting pants of heavy denim for manual work or casual wear
  • jefferson - 3rd President of the United States; chief drafter of the Declaration of Independence; made the Louisiana Purchase in 1803 and sent out the Lewis and Clark Expedition to explore it (1743-1826)
  • jejunostomy - surgical creation of an opening between the jejunum and the anterior abdominal wall; will allow artificial feeding
  • jejunum - the part of the small intestine between the duodenum and the ileum
  • jelly - a preserve made of the jelled juice of fruit
  • jerk - an abrupt spasmodic movement
  • jerking - not having a steady rhythm
  • jerky - having or revealing stupidity
  • jet - of the blackest black; similar to the color of jet or coal
  • ji - a clandestine group of southeast Asian terrorists organized in 1993 and trained by al-Qaeda; supports militant Muslims in Indonesia and the Philippines and has cells in Singapore and Malaysia and Indonesia
  • jigger - larval mite that sucks the blood of vertebrates including human beings causing intense irritation
  • joachim - Hungarian violinist and composer (1831-1907)
  • job - a damaging piece of work
  • john - the last of the four Gospels in the New Testament
  • johnson - 17th President of the United States; was elected vice president and succeeded Lincoln when Lincoln was assassinated; was impeached but acquitted by one vote (1808-1875)
  • johnston - Confederate general in the American Civil War; led the Confederate troops in the West (1807-1891)
  • join - a set containing all and only the members of two or more given sets
  • joined - of or relating to two people who are married to each other
  • joining - the act of bringing two things into contact (especially for communication)
  • joint - involving both houses of a legislature
  • jointed - having joints or jointed segments
  • jointly - in conjunction with; combined
  • jonathan - red late-ripening apple; primarily eaten raw
  • jones - English phonetician (1881-1967)
  • joseph - (New Testament) husband of Mary and (in Christian belief) the foster father of Jesus
  • joule - English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889)
  • journal - the part of the axle contained by a bearing
  • journey - the act of traveling from one place to another
  • jr - a son who has the same first name as his father
  • judge - a public official authorized to decide questions brought before a court of justice
  • judging - the cognitive process of reaching a decision or drawing conclusions
  • judgment - the act of judging or assessing a person or situation or event
  • judith - an Apocryphal book telling how Judith saved her people
  • jugular - relating to or located in the region of the neck or throat
  • juice - any of several liquids of the body
  • jump - the act of jumping; propelling yourself off the ground
  • junction - an act of joining or adjoining things
  • junior - used of the third or next to final year in United States high school or college
  • junk - any of various Chinese boats with a high poop and lugsails
  • jurisprudence - the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do
  • just - used especially of what is legally or ethically right or proper or fitting
  • juvenile - of or relating to or characteristic of or appropriate for children or young people
  • juxtaposition - the act of positioning close together (or side by side)

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

K

  • ka - unknown god; an epithet of Prajapati and Brahma
  • kahn - United States architect (born in Estonia) (1901-1974)
  • kampala - the capital and largest city of Uganda on the north shore of Lake Victoria
  • kaolin - a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)
  • karyotype - the appearance of the chromosomal makeup of a somatic cell in an individual or species (including the number and arrangement and size and structure of the chromosomes)
  • kb - a unit of information equal to one thousand (1024) bytes
  • keenness - thinness of edge or fineness of point
  • keep - the main tower within the walls of a medieval castle or fortress
  • keeping - conformity or harmony
  • keller - United States lecturer and writer who was blind and deaf from the age of 19 months; Anne Sullivan taught her to read and write and speak; Helen Keller graduated from college and went on to champion the cause of blind and deaf people (1880-1968)
  • kelly - United States dancer who performed in many musical films (1912-1996)
  • keloid - raised pinkish scar tissue at the site of an injury; results from excessive tissue repair
  • ken - the range of vision
  • kept - (especially of promises or contracts) not violated or disregarded
  • keratalgia - pain in the cornea
  • keratectasia - abnormal bulging of the cornea of the eye
  • keratin - a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair feathers nails and hooves
  • keratinisation - organic process by which keratin is deposited in cells and the cells become horny (as in nails and hair)
  • keratinise - become horny and impregnated with keratin
  • keratinization - organic process by which keratin is deposited in cells and the cells become horny (as in nails and hair)
  • keratinize - become horny and impregnated with keratin
  • keratitis - inflammation of the cornea causing watery painful eyes and blurred vision
  • keratoacanthoma - skin tumor that grows rapidly (especially in older people) and resembles a carcinoma but does not spread; it usually disappears spontaneously, often leaving a scar
  • keratoconjunctivitis - inflammation of the cornea and conjunctiva
  • keratoconus - abnormal cone-shaped protrusion of the cornea of the eye; can be treated by epikeratophakia
  • keratomalacia - softening and drying and ulceration of the cornea resulting from vitamin A deficiency; symptom of cystic fibrosis or sprue
  • keratoplasty - a surgical procedure in which part or all of a damaged or diseased cornea is replaced by healthy corneal tissue from a donor
  • keratoscope - medical instrument to examine the cornea in order to detect irregularities in its anterior surface
  • keratosis - a skin condition marked by an overgrowth of layers of horny skin
  • keratotomy - surgical incision into the cornea
  • kerion - ringworm infection of the hair follicles of the scalp and beard that usually results in a swelling that is covered with pustules and oozes fluid
  • kernicterus - an abnormal accumulation of bile pigment in the brain and other nerve tissue; causes yellow staining and tissue damage
  • ketamine - a general anesthetic and tranquilizer (not a barbiturate) that is administered intravenously or intramuscularly; used mainly by veterinarians or for minor surgery with geriatric or pediatric patients; taken in large doses it causes hallucinations similar to those associated with the use of PCP
  • ketoacidosis - acidosis with an accumulation of ketone bodies; occurs primarily in diabetes mellitus
  • ketone - any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals
  • ketonuria - excessive amounts of ketone bodies in the urine as in diabetes mellitus or starvation
  • ketoprofen - nonsteroidal anti-inflammatory drug (trade names Orudis or Orudis KT or Oruvail)
  • ketosis - an abnormal increase of ketone bodies in the blood as in diabetes mellitus
  • ketosteroid - a steroid containing a ketone group
  • key - serving as an essential component
  • keyhole - the hole where a key is inserted
  • kg - one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites
  • ki - goddess personifying earth; counterpart of Akkadian Aruru
  • kidney - either of two bean-shaped excretory organs that filter wastes (especially urea) from the blood and excrete them and water in urine
  • kill - the destruction of an enemy plane or ship or tank or missile
  • killer - a difficulty that is hard to deal with
  • killing - very funny
  • kilo - one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites
  • kilocalorie - a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food
  • kilogram - one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites
  • kin - related by blood
  • kinaesthesia - the ability to feel movements of the limbs and body
  • kinanesthesia - inability to sense movement
  • kinase - an enzyme that catalyzes the conversion of a proenzyme to an active enzyme
  • kind - tolerant and forgiving under provocation
  • kine - domesticated bovine animals as a group regardless of sex or age
  • kinematics - the branch of mechanics concerned with motion without reference to force or mass
  • kinesiology - the branch of physiology that studies the mechanics and anatomy in relation to human movement
  • kinesis - a movement that is a response to a stimulus but is not oriented with respect to the source of stimulation
  • kinesthesia - the perception of body position and movement and muscular tensions etc
  • kinetic - characterized by motion
  • king - (chess) the weakest but the most important piece
  • kingdom - a basic group of natural objects
  • kinin - any of a class of plant hormones that promote cell division and delay the senescence of leaves
  • kiss - a light glancing touch
  • kit - young of any of various fur-bearing animals
  • kitchen - a room equipped for preparing meals
  • klebsiella - a genus of nonmotile rod-shaped Gram-negative enterobacteria; some cause respiratory and other infections
  • kleptomania - an irresistible impulse to steal in the absence of any economic motive
  • kleptomaniac - someone with an irrational urge to steal in the absence of an economic motive
  • klinefelter - United States physician who first described the XXY-syndrome (born in 1912)
  • km - a metric unit of length equal to 1000 meters (or 0.621371 miles)
  • knee - the part of a trouser leg that provides the cloth covering for the knee
  • kneecap - a small flat triangular bone in front of the knee that protects the knee joint
  • kneeling - supporting yourself on your knees
  • knife - edge tool used as a cutting instrument; has a pointed blade with a sharp edge and a handle
  • knit - needlework created by interlacing yarn in a series of connected loops using straight eyeless needles or by machine
  • knitted - made by intertwining threads in a series of connected loops rather than by weaving
  • knitting - creating knitted wear
  • knock - the act of hitting vigorously
  • knot - a sandpiper that breeds in the arctic and winters in the southern hemisphere
  • know - the fact of being aware of information that is known to few people
  • knowing - evidencing the possession of inside information
  • knowledge - the psychological result of perception and learning and reasoning
  • known - apprehended with certainty
  • knuckle - a joint of a finger when the fist is closed
  • koch - German bacteriologist who isolated the anthrax bacillus and the tubercle bacillus and the cholera bacillus (1843-1910)
  • kr - a communist organization formed in Cambodia in 1970; became a terrorist organization in 1975 when it captured Phnom Penh and created a government that killed an estimated three million people; was defeated by Vietnamese troops but remained active until 1999
  • kraurosis - atrophy and shriveling of the skin or mucous membrane
  • krebs - English biochemist (born in Germany) who discovered the Krebs cycle (1900-1981)
  • ks - a state in midwestern United States
  • kt - the unit of measurement for the proportion of gold in an alloy; 18-karat gold is 75% gold; 24-karat gold is pure gold
  • kw - a unit of power equal to 1000 watts
  • kwa - a group of African language in the Niger-Congo group spoken from the Ivory Coast east to Nigeria
  • kwashiorkor - severe malnutrition in children resulting from a diet excessively high in carbohydrates and low in protein
  • kyphosis - an abnormal backward curve to the vertebral column
  • kyphotic - characteristic of or suffering from kyphosis, an abnormality of the vertebral column

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

L

  • la - the syllable naming the sixth (submediant) note of a major or minor scale in solmization
  • lab - a workplace for the conduct of scientific research
  • label - trade name of a company that produces musical recordings
  • labeled - bearing or marked with a label or tag
  • labelled - bearing or marked with a label or tag
  • labial - relating to or near the female labium
  • labile - open to change; liable to change
  • labium - any of the four lip-shaped folds of the female vulva
  • labor - productive work (especially physical work done for wages)
  • laboratory - a workplace for the conduct of scientific research
  • labour - productive work (especially physical work done for wages)
  • laboured - requiring or showing effort
  • labyrinth - complex system of paths or tunnels in which it is easy to get lost
  • labyrinthitis - inflammation of the inner ear; can cause vertigo and vomiting
  • lacerate - having edges that are jagged from injury
  • lacerated - having edges that are jagged from injury
  • laceration - the act of lacerating
  • lachrymal - relating to or located near the organ that produces tears
  • lack - the state of needing something that is absent or unavailable
  • lacking - not existing
  • lacrimal - relating to or located near the organ that produces tears
  • lacrimation - shedding tears
  • lacrimator - a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds
  • lactase - any of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose
  • lactate - a salt or ester of lactic acid
  • lactating - producing or secreting milk
  • lactation - the production and secretion of milk by the mammary glands
  • lacteal - relating to or consisting of or producing or resembling milk
  • lactic - of or relating to or obtained from milk (especially sour milk or whey)
  • lactobacillus - Gram-positive rod-shaped bacteria that produce lactic acid especially in milk
  • lactogenic - inducing lactation
  • lactose - a sugar comprising one glucose molecule linked to a galactose molecule; occurs only in milk
  • lactosuria - presence of lactose in the urine; can occur during pregnancy or lactation
  • lacuna - a blank gap or missing part
  • ladder - steps consisting of two parallel members connected by rungs; for climbing up or down
  • lady - a woman of the peerage in Britain
  • lag - the act of slowing down or falling behind
  • laid - set down according to a plan:"a carefully laid table with places set for four people"
  • lambda - the craniometric point at the junction of the sagittal and lamboid sutures of the skull
  • lame - disabled in the feet or legs
  • lamella - thin plate
  • lameness - an imperfection or defectiveness
  • lamina - a thin plate or layer (especially of bone or mineral)
  • laminectomy - surgical removal of the bony arches on one or more vertebrae
  • lamp - an artificial source of visible illumination
  • lance - a surgical knife with a pointed double-edged blade; used for punctures and small incisions
  • lancet - a surgical knife with a pointed double-edged blade; used for punctures and small incisions
  • lancinate - as physically painful as if caused by a sharp instrument
  • lancinating - as physically painful as if caused by a sharp instrument
  • lange - United States photographer remembered for her portraits of rural workers during the Depression (1895-1965)
  • language - the mental faculty or power of vocal communication
  • lanolin - an emollient containing wool fat (a fatty substance obtained from the wool of sheep)
  • lanugo - the fine downy hair covering a human fetus; normally shed during the ninth month of gestation
  • lap - movement once around a course
  • laparoscope - a slender endoscope inserted through an incision in the abdominal wall in order to examine the abdominal organs or to perform minor surgery
  • laparoscopy - laparotomy performed with a laparoscope that makes a small incision to examine the abdominal cavity (especially the ovaries and Fallopian tubes)
  • laparotomy - surgical incision into the abdominal wall; often done to examine abdominal organs
  • lard - soft white semisolid fat obtained by rendering the fatty tissue of the hog
  • large - having broad power and range and scope
  • largely - in large part; mainly or chiefly
  • larger - large or big relative to something else
  • larva - the immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose
  • larval - immature of its kind; especially being or characteristic of immature insects in the newly hatched wormlike feeding stage
  • laryngeal - of or relating to or situated in the larynx
  • laryngectomy - surgical removal of part or all of the larynx (usually to treat cancer of the larynx)
  • laryngismus - laryngeal spasm caused by the sudden contraction of laryngeal muscles
  • laryngitis - inflammation of the mucous membrane of the larynx; characterized by hoarseness or loss of voice and coughing
  • laryngopharyngeal - of or relating to the larynx and pharynx
  • laryngopharynx - the lower part of the pharynx
  • laryngoscope - a medical instrument for examining the larynx
  • laryngospasm - a closure of the larynx that blocks the passage of air to the lungs
  • laryngostenosis - abnormal narrowing of the larynx
  • laryngotracheobronchitis - inflammation of the larynx and trachea and bronchial passageways
  • larynx - a cartilaginous structure at the top of the trachea; contains elastic vocal cords that are the source of the vocal tone in speech
  • laser - an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light
  • lasix - commonly used diuretic (trade name Lasix) used to treat hypertension and edema
  • lassa - the sacred city of Lamaism; known as the Forbidden City for its former inaccessibility and hostility to strangers
  • lassitude - weakness characterized by a lack of vitality or energy
  • last - occurring at the time of death
  • lasting - lasting a long time without change
  • late - having died recently
  • latent - not presently active
  • later - coming at a subsequent time or stage
  • lateral - lying away from the median and sagittal plane of a body
  • laterally - in a lateral direction or location
  • latest - in the current fashion or style
  • latex - a milky exudate from certain plants that coagulates on exposure to air
  • latin - having or resembling the psychology or temper characteristic of people of Latin America
  • latter - referring to the second of two things or persons mentioned (or the last one or ones of several)
  • laudanum - narcotic consisting of an alcohol solution of opium or any preparation in which opium is the main ingredient
  • laughing - showing or feeling mirth or pleasure or happiness
  • laundry - workplace where clothes are washed and ironed
  • laurentius - Roman martyr; supposedly Lawrence was ordered by the police to give up the church's treasure and when he responded by presenting the poor people of Rome he was roasted to death on a gridiron (died in 258)
  • lavage - washing out a hollow organ (especially the stomach) by flushing with water
  • law - the learned profession that is mastered by graduate study in a law school and that is responsible for the judicial system
  • laws - the first of three divisions of the Hebrew Scriptures comprising the first five books of the Hebrew Bible considered as a unit
  • lawyer - a professional person authorized to practice law; conducts lawsuits or gives legal advice
  • laxative - stimulating evacuation of feces
  • lay - not of or from a profession
  • layer - thin structure composed of a single thickness of cells
  • lazy - moving slowly and gently
  • lb - 16 ounces
  • lbj - 36th President of the United States; was elected vice president and succeeded Kennedy when Kennedy was assassinated (1908-1973)
  • ldl - a lipoprotein that transports cholesterol in the blood; composed of moderate amount of protein and a large amount of cholesterol; high levels are thought to be associated with increased risk of coronary heart disease and atherosclerosis
  • le - a chronic inflammatory collagen disease affecting connective tissue (skin or joints)
  • lead - the playing of a card to start a trick in bridge
  • leader - a person who rules or guides or inspires others
  • leadership - the activity of leading
  • leading - going or proceeding or going in advance; showing the way
  • leaf - hinged or detachable flat section (as of a table or door)
  • leafy - having or covered with leaves
  • leak - unauthorized (especially deliberate) disclosure of confidential information
  • leakage - the unwanted discharge of a fluid from some container
  • learn - gain knowledge or skills
  • learned - acquired by learning
  • learning - the cognitive process of acquiring skill or knowledge
  • least - the superlative of `little' that can be used with mass nouns and is usually preceded by `the'; a quantifier meaning smallest in amount or extent or degree
  • leather - an animal skin made smooth and flexible by removing the hair and then tanning
  • leave - permission to do something
  • leaving - act of departing
  • lecithin - a yellow phospholipid essential for the metabolism of fats; found in egg yolk and in many plant and animal cells; used commercially as an emulsifier
  • led - diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used
  • leech - carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end
  • left - intended for the left hand
  • leg - (nautical) the distance traveled by a sailing vessel on a single tack
  • legal - allowed by official rules
  • legally - in a legal manner
  • legged - having legs of a specified kind or number
  • legs - staying power
  • lei - flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes
  • leiomyoma - benign tumor of smooth muscle (usually in the uterus or digestive tract)
  • leiomyosarcoma - sarcoma of smooth muscle; occurs most often digestive tract or uterus or bladder or prostate
  • leipzig - a city in southeastern Germany famous for fairs; formerly a music and publishing center
  • leishmania - flagellate protozoan that causes leishmaniasis
  • leishmaniasis - sores resulting from a tropical infection by protozoa of the genus Leishmania which are spread by sandflies
  • leisure - freedom to choose a pastime or enjoyable activity
  • lek - the basic unit of money in Albania
  • lem - a spacecraft that carries astronauts from the command module to the surface of the moon and back
  • length - a section of something that is long and narrow
  • lengthen - become long or longer
  • lengthening - the act of prolonging something
  • lengthwise - running or extending in the direction of the length of a thing
  • lens - a transparent optical device used to converge or diverge transmitted light and to form images
  • lent - a period of 40 weekdays from Ash Wednesday to Holy Saturday
  • lenticular - convex on both sides; shaped like a lentil
  • lentigo - a small brownish spot (of the pigment melanin) on the skin
  • leo - the fifth sign of the zodiac; the sun is in this sign from about July 23 to August 22
  • leon - a city in central Mexico
  • leprosy - chronic granulomatous communicable disease occurring in tropical and subtropical regions; characterized by inflamed nodules beneath the skin and wasting of body parts; caused by the bacillus Mycobacterium leprae
  • leptomeninges - the two innermost layers of the meninges; cerebrospinal fluid circulates between these innermost layers
  • leptomeningitis - inflammation of the leptomeninges
  • leptospira - important pathogens causing Weil's disease or canicola fever
  • leptospirosis - an infectious disease cause by leptospira and transmitted to humans from domestic animals; characterized by jaundice and fever
  • leresis - rambling talkativeness (especially in the aged)
  • lesbian - of female homosexuality
  • lesbianism - female homosexuality
  • lesion - any visible abnormal structural change in a bodily part
  • less - (comparative of `little' usually used with mass nouns) a quantifier meaning not as great in amount or degree
  • lessen - decrease in size, extent, or range
  • lessening - a change downward
  • lesser - smaller in size or amount or value
  • let - a serve that strikes the net before falling into the receiver's court; the ball must be served again
  • lethal - of an instrument of certain death
  • lethargic - deficient in alertness or activity
  • lethargy - a state of comatose torpor (as found in sleeping sickness)
  • letter - a written message addressed to a person or organization
  • letterer - a painter of letters
  • letters - the literary culture
  • letting - property that is leased or rented out or let
  • leucine - a white crystalline amino acid occurring in proteins that is essential for nutrition; obtained by the hydrolysis of most dietary proteins
  • leucocyte - blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system
  • leucocytosis - an abnormal increase in the number of white blood cells in the blood as a result of infection (as in leukemia)
  • leucoma - eye disease consisting of an opaque white spot on the cornea
  • leucopenia - an abnormal lowering of the white blood cell count
  • leucotomy - surgical interruption of nerve tracts to and from the frontal lobe of the brain; often results in marked cognitive and personality changes
  • leukaemia - malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer
  • leukemia - malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer
  • leukocyte - blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system
  • leukocytosis - an abnormal increase in the number of white blood cells in the blood as a result of infection (as in leukemia)
  • leukoderma - a congenital skin condition characterized by spots or bands of unpigmented skin
  • leukoma - eye disease consisting of an opaque white spot on the cornea
  • leukopenia - an abnormal lowering of the white blood cell count
  • leukorrhea - discharge of white mucous material from the vagina; often an indication of infection
  • lev - the basic unit of money in Bulgaria
  • levator - a muscle that serves to lift some body part (as the eyelid or lip)
  • level - oriented at right angles to the plumb
  • levodopa - the levorotatory form of dopa (trade names Bendopa and Brocadopa and Larodopa); as a drug it is used to treat Parkinson's disease
  • lewis - English critic and novelist; author of theological works and of books for children (1898-1963)
  • lf - 30 to 300 kilohertz
  • lh - a gonadotropic hormone that is secreted by the anterior pituitary; stimulates ovulation in female mammals and stimulates androgen release in male mammals
  • li - Chinese distance measure; approximately 0.5 kilometers
  • liable - held legally responsible
  • liar - a person who has lied or who lies repeatedly
  • libido - (psychoanalysis) a Freudian term for sexual urge or desire
  • library - a depository built to contain books and other materials for reading and study
  • librium - a tranquilizer (trade names Librium and Libritabs) used in the treatment of alcoholism
  • licence - a legal document giving official permission to do something
  • license - the act of giving a formal (usually written) authorization
  • licensed - given official approval to act
  • licentiate - holds a license (degree) from a (European) university
  • lichen - any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.
  • lid - a movable top or cover (hinged or separate) for closing the opening of a container
  • lidocaine - a local anesthetic (trade names Lidocaine and Xylocaine) used topically on the skin and mucous membranes
  • lie - a statement that deviates from or perverts the truth
  • lien - the right to take another's property if an obligation is not discharged
  • lienal - of or relating to the spleen
  • life - living things collectively
  • lifesaving - saving the lives of drowning persons
  • lifespan - the period during which something is functional (as between birth and death)
  • lifestyle - a manner of living that reflects the person's values and attitudes
  • lift - the act of raising something
  • lifted - held up in the air
  • ligament - any connection or unifying bond
  • ligate - bind with a bandage or ligature
  • ligation - (surgery) tying a duct or blood vessel with a ligature (as to prevent bleeding during surgery)
  • ligature - thread used by surgeons to bind a vessel (as to constrict the flow of blood)
  • light - characterized by or emitting light
  • lightening - descent of the uterus into the pelvic cavity that occurs late in pregnancy; the fetus is said to have dropped
  • lighting - the craft of providing artificial light
  • lightly - with indifference or without dejection
  • lightning - the flash of light that accompanies an electric discharge in the atmosphere (or something resembling such a flash); can scintillate for a second or more
  • like - resembling or similar; having the same or some of the same characteristics; often used in combination
  • likelihood - the probability of a specified outcome
  • likely - within the realm of credibility
  • liking - a feeling of pleasure and enjoyment
  • lima - capital and largest city and economic center of Peru; located in western Peru; was capital of the Spanish empire in the New World until the 19th century
  • limb - the graduated arc that is attached to an instrument for measuring angles
  • limbic - of or relating to or forming a limbus
  • limbless - having no limbs
  • limbus - a border or edge of any of various body parts distinguished by color or structure
  • limen - the smallest detectable sensation
  • limit - the greatest possible degree of something
  • limited - including only a part
  • limiting - strictly limiting the reference of a modified word or phrase
  • limp - not firm
  • limping - disability of walking due to crippling of the legs or feet
  • line - acting in conformity
  • linear - of or in or along or relating to a line; involving a single dimension
  • lined - bordered by a line of things
  • lingual - pertaining to or resembling or lying near the tongue
  • liniment - a medicinal liquid that is rubbed into the skin to relieve muscular stiffness and pain
  • lining - the act of attaching an inside lining (to a garment or curtain etc.)
  • link - a fastener that serves to join or connect
  • linkage - the act of linking things together
  • linked - connected by a link, as railway cars or trailer trucks
  • links - a golf course that is built on sand ground near a shore
  • linseed - the seed of flax used as a source of oil
  • lint - cotton or linen fabric with the nap raised on one side; used to dress wounds
  • liothyronine - thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity; exerts the same biological effects as thyroxine but is more potent and briefer
  • lip - fleshy folds of tissue as those surrounding the mouth
  • lipaemia - presence of excess lipids in the blood
  • lipase - an enzyme secreted in the digestive tract that catalyzes the breakdown of fats into individual fatty acids that can be absorbed into the bloodstream
  • lipemia - presence of excess lipids in the blood
  • lipid - an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates)
  • lipidosis - a disorder of lipid metabolism; abnormal levels of certain fats accumulate in the body
  • lipmann - United States biochemist (born in Germany) noted for his studies of metabolic processes (1899-1986)
  • lipochondrodystrophy - hereditary disease (autosomal recessive) consisting of an error is mucopolysaccharide metabolism; characterized by severe abnormalities in development of skeletal cartilage and bone and mental retardation
  • lipoid - an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates)
  • lipoma - a tumor consisting of fatty tissue
  • lipomatosis - pathology in which fat accumulates in lipomas in the body
  • lipoprotein - a conjugated protein having a lipid component; the principal means for transporting lipids in the blood
  • liposarcoma - sarcoma of fat cells
  • liquid - clear and bright
  • liquor - the liquid in which vegetables or meat have be cooked
  • liquorice - a black candy flavored with the dried root of the licorice plant
  • lir - the sea personified; father of Manannan; corresponds to Welsh Llyr
  • lisp - a flexible procedure-oriented programing language that manipulates symbols in the form of lists
  • list - a database containing an ordered array of items (names or topics)
  • listed - on a list
  • listen - hear with intention
  • listening - the act of hearing attentively
  • lister - moldboard plow with a double moldboard designed to move dirt to either side of a central furrow
  • listeria - any species of the genus Listeria
  • listeriosis - an infectious disease of animals and humans (especially newborn or immunosuppressed persons) caused by the bacterium Listeria monocytogenes; in sheep and cattle the infection frequently involves the central nervous system and causes various neurological symptoms
  • listing - the act of making a list of items
  • listless - lacking zest or vivacity
  • listlessness - inactivity resulting from lethargy and lack of vigor or energy
  • liter - a metric unit of capacity equal to the volume of 1 kilogram of pure water at 4 degrees centigrade and 760 mm of mercury (or approximately 1.76 pints)
  • lithiasis - the formation of stones (calculi) in an internal organ
  • lithium - a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
  • lithotomy - surgical removal of a stone (calculus)
  • lithuanian - of or relating to or characteristic of Lithuania or its people or language
  • lithuresis - passing small stones with the urine
  • litmus - a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator
  • litre - a metric unit of capacity equal to the volume of 1 kilogram of pure water at 4 degrees centigrade and 760 mm of mercury (or approximately 1.76 pints)
  • little - small in a way that arouses feelings (of tenderness or its opposite depending on the context)
  • live - exerting force or containing energy
  • livedo - skin disorder characterized by patchy bluish discolorations on the skin
  • lively - characterized by energetic activity
  • liver - having a reddish-brown color
  • livid - furiously angry
  • living - (informal) absolute
  • lm - a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions
  • lobar - of or relating to or affecting a lobe
  • lobe - a rounded projection that is part of a larger structure
  • lobectomy - surgical removal of a lobe from any organ of the body (as the lung or brain)
  • lobotomy - surgical interruption of nerve tracts to and from the frontal lobe of the brain; often results in marked cognitive and personality changes
  • lobular - of or relating to or resembling a lobule
  • lobule - a small lobe or subdivision of a lobe
  • local - relating to or applicable to or concerned with the administration of a city or town or district rather than a larger area
  • localise - locate
  • localised - made local or oriented locally
  • localize - restrict something to a particular area
  • localized - made local or oriented locally
  • locally - by a particular locality
  • locate - discover the location of; determine the place of; find by searching or examining
  • located - situated in a particular spot or position
  • location - a point or extent in space
  • loch - Scottish word for a lake
  • lochia - substance discharged from the vagina (cellular debris and mucus and blood) that gradually decreases in amount during the weeks following childbirth
  • lock - any wrestling hold in which some part of the opponent's body is twisted or pressured
  • locked - firmly fastened or secured against opening
  • locking - the act of locking something up to protect it
  • lockjaw - an acute and serious infection of the central nervous system caused by bacterial infection of open wounds; spasms of the jaw and laryngeal muscles may occur during the late stages
  • locomotion - self-propelled movement
  • locomotor - of or relating to locomotion
  • locule - a small cavity or space within an organ or in a plant or animal
  • loculus - a small cavity or space within an organ or in a plant or animal
  • locum - someone (physician or clergyman) who substitutes temporarily for another member of the same profession
  • locus - the set of all points or lines that satisfy or are determined by specific conditions
  • lodge - any of various native American dwellings
  • log - measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship's speed through the water
  • logan - a mountain peak in the St. Elias Range in the southwestern Yukon Territory in Canada (19,850 feet high)
  • logging - the work of cutting down trees for timber
  • logrolling - act of exchanging favors for mutual gain; especially trading of influence or votes among legislators to gain passage of certain projects
  • logy - stunned or confused and slow to react (as from blows or drunkenness or exhaustion)
  • loin - either side of the backbone between the hipbone and the ribs in humans as well as quadrupeds
  • lomotil - trade name of an antidiarrheal
  • london - the capital and largest city of England; located on the Thames in southeastern England; financial and industrial and cultural center
  • long - having or being more than normal or necessary:"long on brains"
  • longer - for more time
  • longest - for the most time
  • longitudinal - over an extended time
  • longsighted - planning prudently for the future
  • longsightedness - abnormal condition in which vision for distant objects is better than for near objects
  • loo - a toilet in England
  • look - the act of directing the eyes toward something and perceiving it visually
  • looking - appearing to be as specified; usually used as combining forms
  • loop - a flight maneuver; aircraft flies a complete circle in the vertical plane
  • loose - not bound or fastened or gathered together
  • loosely - knitted in a loose manner
  • loosen - become loose or looser or less tight
  • lorazepam - tranquilizer (trade name Ativan) used to treat anxiety and tension and insomnia
  • lordosis - an abnormal inward (forward) curvature of the vertebral column
  • lordotic - having abnormal sagging of the spine (especially in horses)
  • lose - fail to win
  • loss - the act of losing
  • losses - something lost (especially money lost at gambling)
  • lost - not caught with the senses or the mind
  • lot - a parcel of land having fixed boundaries
  • lotion - any of various cosmetic preparations that are applied to the skin
  • loud - characterized by or producing sound of great volume or intensity
  • loudly - with relatively high volume
  • loudness - tasteless showiness
  • louis - United States prizefighter who was world heavyweight campion for 12 years (1914-1981)
  • louse - wingless usually flattened bloodsucking insect parasitic on warm-blooded animals
  • low - literal meanings; being at or having a relatively small elevation or upward extension
  • lower - the lower of two berths
  • lowered - below the surround or below the normal position
  • lowering - darkened by clouds
  • lowest - lowest in rank or importance
  • lozenge - a small aromatic or medicated candy
  • lp - a long-playing phonograph record; designed to be played at 33.3 rpm
  • lpn - a nurse who has enough training to be licensed by a state to provide routine care for the sick
  • lr - a radioactive transuranic element synthesized from californium
  • lsd - a powerful hallucinogenic drug manufactured from lysergic acid
  • lu - a trivalent metallic element of the rare earth group; usually occurs in association with yttrium
  • lubricant - a substance capable of reducing friction by making surfaces smooth or slippery
  • lubricate - make slippery or smooth through the application of a lubricant
  • lubricated - smeared with oil or grease to reduce friction
  • lucid - having a clear mind
  • lumbago - backache affecting the lumbar region or lower back; can be caused by muscle strain or arthritis or vascular insufficiency or a ruptured intervertebral disc
  • lumbar - of or relating to or near the part of the back between the ribs and the hipbones
  • lumbosacral - of or relating to or near the small of the back and the back part of the pelvis between the hips
  • lumen - a cavity or passage in a tubular organ
  • lump - a compact mass
  • lumpectomy - surgical removal of a tumor without removing much of the surrounding tissue or lymph nodes; performed in some cases of breast cancer
  • lumpy - having lumps; not smooth and even in texture
  • lunate - resembling the new moon in shape
  • lunch - a midday meal
  • lund - a city in southern Sweden
  • lung - either of two saclike respiratory organs in the chest of vertebrates; serves to remove carbon dioxide and provide oxygen to the blood
  • lunula - a crescent-shaped metal ornament of the Bronze Age
  • lupus - a constellation in the southern hemisphere near Centaurus
  • lutein - yellow carotenoid pigments in plants and animal fats and egg yolks
  • luther - German theologian who led the Reformation; believed that salvation is granted on the basis of faith rather than deeds (1483-1546)
  • luxation - displacement or misalignment of a joint or organ
  • lying - given to lying
  • lymph - a thin coagulable fluid (similar to plasma but) containing white blood cells (lymphocytes) and chyle; is conveyed to the blood stream by lymphatic vessels
  • lymphadenitis - inflammation of lymph nodes
  • lymphadenoma - an abnormally enlarged lymph node
  • lymphadenopathy - chronic abnormal enlargement of the lymph nodes (usually associated with disease)
  • lymphangiectasis - dilatation of a lymph vessel
  • lymphangiography - roentgenographic examination of lymph nodes and lymph vessels after injection of a radiopaque contrast medium; produces a lymphangiogram
  • lymphangioma - benign angioma consisting of a mass of lymphatic vessels
  • lymphangitis - inflammation of a lymph vessel
  • lymphatic - of or relating to or produced by lymph
  • lymphedema - swelling (usually in the legs) caused by lymph accumulating in the tissues
  • lymphoblast - an immature lymphocyte
  • lymphocyte - an agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but increases in the presence of infection
  • lymphocytic - of or relating to lymphocytes
  • lymphocytopenia - an abnormally small number of lymphocytes in the circulating blood
  • lymphocytosis - an abnormal increase in the number of lymphocytes in the circulating blood
  • lymphogranuloma - swelling of a lymph node
  • lymphography - roentgenographic examination of lymph nodes and lymph vessels after injection of a radiopaque contrast medium; produces a lymphangiogram
  • lymphoid - resembling lymph or lymphatic tissues
  • lymphokine - a cytokine secreted by helper T cells in response to stimulation by antigens and that acts on other cells of the immune system (as by activating macrophages)
  • lymphoma - a neoplasm of lymph tissue that is usually malignant; one of the four major types of cancer
  • lymphopenia - an abnormally small number of lymphocytes in the circulating blood
  • lymphopoiesis - the formation of lymphocytes in the bone marrow and lymph nodes and thymus and spleen
  • lymphuria - the presence of lymph in the urine
  • lyophilisation - a method of drying food or blood plasma or pharmaceuticals or tissue without destroying their physical structure; material is frozen and then warmed in a vacuum so that the ice sublimes
  • lyophilise - to dry (blood, serum, or tissue) by freezing in a high vacuum
  • lyophilised - used of tissue or blood or serum or other biological substances; dried by freezing in a high vacuum
  • lyophilization - a method of drying food or blood plasma or pharmaceuticals or tissue without destroying their physical structure; material is frozen and then warmed in a vacuum so that the ice sublimes
  • lyophilize - to dry (blood, serum, or tissue) by freezing in a high vacuum
  • lysin - any substance (such as an antibody) or agent that can cause lysis
  • lysine - an essential amino acid found in proteins; occurs especially in gelatin and casein
  • lysis - (biochemistry) dissolution or destruction of cells such as blood cells or bacteria
  • lysol - a clear oily brown solution of cresols in soap; used as an antiseptic and disinfectant
  • lysosome - an organelle found in the cytoplasm of most cells (especially in leukocytes and liver and kidney cells)
  • lysozyme - an enzyme found in saliva and sweat and tears that destroys the cell walls of certain bacteria

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

M

  • ma - informal terms for a mother
  • macerate - soften, usually by steeping in liquid, and cause to disintegrate as a result
  • maceration - softening due to soaking or steeping
  • machine - any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks
  • macro - very large in scale or scope or capability
  • macrobiotic - of or relating to the theory or practice of macrobiotics
  • macrocephaly - an abnormally large head; differs from hydrocephalus because there is no increased intracranial pressure and the overgrowth is symmetrical
  • macrocyte - abnormally large red blood cell (associated with pernicious anemia)
  • macrocytosis - the presence of macrocytes in the blood
  • macroglossia - a congenital disorder characterized by an abnormally large tongue; often seen in cases of Down's syndrome
  • macrophage - a large phagocyte; some are fixed and other circulate in the blood stream
  • macroscopic - large enough to be visible to the naked eye
  • macula - a yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
  • macule - a patch of skin that is discolored but not usually elevated; caused by various diseases
  • mad - roused to anger
  • madame - title used for a married Frenchwoman
  • made - produced by a manufacturing process
  • magazine - a storehouse (as a compartment on a warship) where weapons and ammunition are stored
  • magnesium - a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
  • magnet - (physics) a device that attracts iron and produces a magnetic field
  • magnetic - having the properties of a magnet; i.e. of attracting iron or steel
  • magnified - enlarged to an abnormal degree
  • magnum - a large wine bottle for liquor or wine
  • maim - injure or wound seriously and leave permanent disfiguration or mutilation
  • main - of force; of the greatest possible intensity
  • mainly - for the most part
  • mainstream - the prevailing current of thought
  • maintain - state or assert
  • maintained - kept in good condition
  • maintenance - the unauthorized interference in a legal action by a person having no interest in it (as by helping one party with money or otherwise to continue the action) so as to obstruct justice or promote unnecessary litigation or unsettle the peace of the community
  • major - greater in number or size or amount
  • majority - the property resulting from being or relating to the greater in number of two parts; the main part
  • make - the act of mixing cards haphazardly
  • makeup - cosmetics applied to the face to improve or change your appearance
  • making - (usually plural) the components needed for making or doing something
  • malabsorption - abnormal absorption of nutrients from the digestive tract
  • malacia - a state of abnormal softening of tissue
  • maladjusted - not well adjusted
  • maladjustment - the condition of being unable to adapt properly to your environment with resulting emotional instability
  • malaise - physical discomfort (as mild sickness or depression)
  • malar - the arch of bone beneath the eye that forms the prominence of the cheek
  • malaria - an infective disease caused by sporozoan parasites that are transmitted through the bite of an infected Anopheles mosquito; marked by paroxysms of chills and fever
  • malarial - of or infected by or resembling malaria
  • male - being the sex (of plant or animal) that produces gametes (spermatozoa) that perform the fertilizing function in generation
  • maleate - a salt or ester of maleic acid; used as a nontricyclic antidepressant drug for psychomotor activation
  • maleficence - the quality or nature of being harmful or evil
  • malformation - something abnormal or anomalous
  • malformed - so badly formed or out of shape as to be ugly
  • malfunction - a failure to function normally
  • malfunctioning - not performing or able to perform its regular function
  • malignancy - (medicine) a malignant state; progressive and resistant to treatment and tending to cause death
  • malignant - dangerous to health; characterized by progressive and uncontrolled growth (especially of a tumor)
  • malingerer - someone shirking their duty by feigning illness or incapacity
  • malingering - evading duty or work by pretending to be incapacitated
  • mallet - a tool resembling a hammer but with a large head (usually wooden); used to drive wedges or ram down paving stones or for crushing or beating or flattening or smoothing
  • malleus - the ossicle attached to the eardrum
  • malnourished - not being provided with adequate nourishment
  • malnutrition - a state of poor nutrition; can result from insufficient or excessive or unbalanced diet or from inability to absorb foods
  • malocclusion - (dentistry) a condition in which the opposing teeth do not mesh normally
  • malodorous - having an unpleasant smell
  • malpighi - Italian anatomist who was the first to use a microscope to study anatomy and was among the first to recognize cells in animals (1628-1694)
  • malposition - faulty position
  • malpractice - a wrongful act that the actor had no right to do; improper professional conduct
  • malta - a strategically located island south of Sicily in the Mediterranean Sea
  • maltose - a white crystalline sugar formed during the digestion of starches
  • mamilla - the small projection of a mammary gland
  • mamma - milk-secreting organ of female mammals
  • mammary - of or relating to the milk-giving gland of the female
  • mammilla - the small projection of a mammary gland
  • mammogram - X-ray film of the soft tissue of the breast
  • mammography - a diagnostic procedure to detect breast tumors by the use of X rays
  • mammothermography - the use of thermography to detect breast tumors (which appear as hot spots)
  • man - game equipment consisting of an object used in playing certain board games
  • manage - be in charge of, act on, or dispose of
  • management - the act of managing something
  • manager - (sports) someone in charge of training an athlete or a team
  • manchester - a city in northwestern England (30 miles east of Liverpool); heart of the most densely populated area of England
  • mandible - the jaw in vertebrates that is hinged to open the mouth
  • mandibular - relating to the lower jaw
  • mane - long coarse hair growing from the crest of the animal's neck
  • manganese - a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
  • mania - an irrational but irresistible motive for a belief or action
  • maniac - wildly disordered
  • manic - affected with or marked by frenzy or mania uncontrolled by reason
  • manifestation - a manifest indication of the existence or presence or nature of some person or thing
  • manikin - a person who is very small but who is not otherwise deformed or abnormal
  • manipulate - treat manually, as with massage, for therapeutic purposed
  • manipulation - exerting shrewd or devious influence especially for one's own advantage
  • manner - a way of acting or behaving
  • mannitol - a diuretic (trade name Osmitrol) used to promote the excretion of urine
  • manoeuvre - an action aimed at evading an opponent
  • manometer - a pressure gauge for comparing pressures of a gas
  • manual - requiring human effort
  • manubrium - the upper part of the breastbone
  • manufacture - the organized action of making of goods and services for sale
  • manufacturer - a business engaged in manufacturing some product
  • many - a quantifier that can be used with count nouns and is often preceded by `as' or `too' or `so' or `that'; amounting to a large but indefinite number
  • mao - Chinese communist leader (1893-1976)
  • maoi - any of a group of antidepressant drugs that inhibit the action of monoamine oxidase in the brain and so allow monoamines to accumulate
  • maple - any of numerous trees or shrubs of the genus Acer bearing winged seeds in pairs; north temperate zone
  • mapping - (genetics) the process of locating genes on a chromosome
  • marasmus - extreme malnutrition and emaciation (especially in children); can result from inadequate intake of food or from malabsorption or metabolic disorders
  • marble - a small ball of glass that is used in various games
  • march - a steady advance
  • maria - valuable timber tree of Panama
  • marijuana - a strong-smelling plant from whose dried leaves a number of euphoriant and hallucinogenic drugs are prepared
  • mark - the impression created by doing something unusual or extraordinary that people notice and remember
  • marked - singled out for notice or especially for a dire fate
  • marker - some conspicuous object used to distinguish or mark something
  • marketing - shopping at a market
  • marking - the act of making a visible mark on a surface
  • marks - English businessman who created a retail chain (1888-1964)
  • marquette - a town on Lake Superior on the Upper Peninsula in northwest Michigan
  • marquis - nobleman (in various countries) ranking above a count
  • marriage - the act of marrying; the nuptial ceremony
  • married - joined in matrimony
  • marrow - the fatty network of connective tissue that fills the cavities of bones
  • marseilles - a port city in southeastern France on the Mediterranean
  • martin - any of various swallows with squarish or slightly forked tail and long pointed wings; migrate around Martinmas
  • marvellous - too improbable to admit of belief
  • mary - the mother of Jesus; Christians refer to her as the Virgin Mary; she is especially honored by Roman Catholics
  • masculinisation - the abnormal development of male sexual characteristics in a female (usually as the result of hormone therapies or adrenal malfunction)
  • masculinity - the trait of behaving in ways considered typical for men
  • masculinization - the abnormal development of male sexual characteristics in a female (usually as the result of hormone therapies or adrenal malfunction)
  • mask - activity that tries to conceal something
  • masked - having its true character concealed with the intent of misleading
  • masochism - sexual pleasure obtained from receiving punishment (physical or psychological)
  • masochist - someone who obtains pleasure from receiving punishment
  • masochistic - deriving pleasure or sexual gratification from being abused or dominated
  • mason - a craftsman who works with stone or brick
  • mass - gathered or tending to gather into a mass or whole
  • massage - kneading and rubbing parts of the body to increase circulation and promote relaxation
  • masses - the common people generally
  • masseter - a large muscle that raises the lower jaw and is used in chewing
  • massive - consisting of great mass; containing a great quantity of matter
  • mast - a vertical spar for supporting sails
  • mastalgia - pain in the breast
  • mastectomy - surgical removal of a breast to remove a malignant tumor
  • master - an original creation (i.e., an audio recording) from which copies can be made
  • masticate - grind and knead
  • mastication - biting and grinding food in your mouth so it becomes soft enough to swallow
  • mastitis - inflammation of a breast (or udder)
  • mastoid - relating to or resembling a nipple
  • mastoidectomy - surgical removal of some or all of the mastoid process
  • mastoiditis - inflammation of the mastoid
  • masturbate - get sexual gratification through self-stimulation
  • masturbation - manual stimulation of the genital organs (of yourself or another) for sexual pleasure
  • match - lighter consisting of a thin piece of wood or cardboard tipped with combustible chemical; ignites with friction
  • matched - provided with a worthy adversary or competitor
  • matching - intentionally matched
  • mater - an informal use of the Latin word for mother; sometimes used by British schoolboys or used facetiously
  • material - derived from or composed of matter
  • maternal - characteristic of a mother
  • maternity - the quality of having or showing the tenderness and warmth and affection of or befitting a mother
  • matrix - mold used in the production of phonograph records, type, or other relief surface
  • matron - a married woman (usually middle-aged with children) who is staid and dignified
  • matter - (used with negation) having consequence
  • mattress - a large thick pad filled with resilient material and often incorporating coiled springs, used as a bed or part of a bed
  • maturation - coming to full development; becoming mature
  • mature - fully considered and perfected
  • maturity - state of being mature; full development
  • max - street names for gamma hydroxybutyrate
  • maxilla - the jaw in vertebrates that is fused to the cranium
  • maxillary - of or relating to the upper jaw
  • maximum - the greatest or most complete or best possible
  • may - the month following April and preceding June
  • mayo - egg yolks and oil and vinegar
  • mb - (a British degree) a bachelor's degree in medicine
  • mba - a master's degree in business
  • md - a doctor's degree in medicine
  • me - a state in New England
  • meal - coarsely ground foodstuff; especially seeds of various cereal grasses or pulse
  • mean - (used of persons or behavior) characterized by or indicative of lack of generosity
  • meaning - rich in significance or implication
  • meaningless - having no meaning or direction or purpose
  • means - how a result is obtained or an end is achieved
  • measles - an acute and highly contagious viral disease marked by distinct red spots followed by a rash; occurs primarily in children
  • measure - how much there is of something that you can quantify
  • measured - determined by measurement
  • measurement - the act or process of assigning numbers to phenomena according to a rule
  • measuring - the act or process of assigning numbers to phenomena according to a rule
  • meat - the flesh of animals (including fishes and birds and snails) used as food
  • meatus - a natural body passageway
  • mechanical - using (or as if using) mechanisms or tools or devices
  • mechanism - the technical aspects of doing something
  • meconium - thick dark green mucoid material that is the first feces of a newborn child
  • med - a master's degree in education
  • medial - dividing an animal into right and left halves
  • medially - in a medial position
  • median - relating to or situated in or extending toward the middle
  • mediastinum - the part of the thoracic cavity between the lungs that contains the heart and aorta and esophagus and trachea and thymus
  • medic - any of several Old World herbs of the genus Medicago having small flowers and trifoliate compound leaves
  • medical - requiring or amenable to treatment by medicine especially as opposed to surgery
  • medically - involving medical practice
  • medicare - health care for the aged; a federally administered system of health insurance available to persons aged 65 and over
  • medication - the act of treating with medicines or remedies
  • medicinal - having the properties of medicine
  • medicinally - in a medicinal manner
  • medicine - the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries
  • medico - a licensed medical practitioner
  • medicolegal - pertaining to legal aspects of the practice of medicine (as malpractice or patient consent for operations or patient information)
  • meditation - continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature
  • mediterranean - of or relating to or characteristic of or located near the Mediterranean Sea
  • medium - (meat) cooked until there is just a little pink meat inside
  • medroxyprogesterone - a progestin compound (trade name Provera) used to treat menstrual disorders
  • medulla - the inner part of an organ or structure in plant or animal
  • medullary - of or relating to the medulla of any body part
  • medullated - (of neurons) covered with a layer of myelin
  • meet - being precisely fitting and right
  • meeting - the social act of assembling for some common purpose
  • mefloquine - an antimalarial drug (trade name Larium and Mephaquine) that is effective in cases that do not respond to chloroquine; said to produce harmful neuropsychiatric effects on some people
  • megacolon - an abnormal enlargement of the colon; can be congenital (as in Hirschsprung's disease) or acquired (as when children refuse to defecate)
  • megakaryocyte - a large bone marrow cell; regarded as the source of blood platelets
  • megaloblast - abnormally large red blood cell present in pernicious anemia and folic acid deficiency
  • megaloblastic - of or relating to megaloblasts
  • megalocephaly - an abnormally large head; differs from hydrocephalus because there is no increased intracranial pressure and the overgrowth is symmetrical
  • megalocyte - abnormally large red blood cell (associated with pernicious anemia)
  • megalomania - a psychological state characterized by delusions of grandeur
  • megalomaniac - a pathological egotist
  • meiosis - (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants)
  • meissner - German physicist (1882-1974)
  • mek - a terrorist organization formed in the 1960s by children of Iranian merchants; sought to counter the Shah of Iran's pro-Western policies of modernization and opposition to communism; following a philosophy that mixes Marxism and Islam it now attacks the Islamic fundamentalists who deposed the Shah
  • melaena - abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding)
  • melancholia - extreme depression characterized by tearful sadness and irrational fears
  • melanin - insoluble pigments that account for the color of e.g. skin and scales and feathers
  • melanism - a condition characterized by abnormal deposits of melanin (especially in the skin)
  • melanocyte - a cell in the basal layer of the epidermis that produces melanin under the control of the melanocyte-stimulating hormone
  • melanoderma - abnormally dark skin caused by increased deposits of melatonin
  • melanoma - any of several malignant neoplasms (usually of the skin) consisting of melanocytes
  • melanosis - a condition characterized by abnormal deposits of melanin (especially in the skin)
  • melasma - a tan discoloration of a woman's face that is associated with pregnancy or with the use of oral contraceptives
  • melatonin - hormone secreted by the pineal gland
  • melbourne - the capital of Victoria state and 2nd largest Australian city; a financial and commercial center
  • melena - abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding)
  • mem - the 13th letter of the Hebrew alphabet
  • member - an organization that is a member of another organization (especially a state that belongs to a group of nations)
  • membrane - a thin pliable sheet of material
  • membranous - characterized by formation of a membrane (or something resembling a membrane)
  • meme - a cultural unit (an idea or value or pattern of behavior) that is passed from one generation to another by non-genetic means (as by imitation)
  • memory - an electronic memory device
  • men - the force of workers available
  • menarche - the first occurrence of menstruation in a woman
  • mend - sewing that repairs a worn or torn hole (especially in a garment)
  • mendel - Augustinian monk and botanist whose experiments in breeding garden peas led to his eventual recognition as founder of the science of genetics (1822-1884)
  • mending - garments that must be repaired
  • meningeal - relating to the meninges
  • meninges - a membrane (one of 3) that envelops the brain and spinal cord
  • meningioma - a tumor arising in the meninges which surround the brain and spinal cord; usually slow growing and sometimes malignant
  • meningism - symptoms that mimic those of meningitis but without inflammation of the meninges
  • meningitis - infectious disease characterized by inflammation of the meninges (the tissues that surround the brain or spinal cord) usually caused by a bacterial infection; symptoms include headache and stiff neck and fever and nausea
  • meningocele - a congenital anomaly of the central nervous system in which a sac protruding from the brain or the spinal meninges contains cerebrospinal fluid (but no nerve tissue)
  • meningoencephalitis - inflammation of the brain and spinal cord and their meninges
  • meninx - a membrane (one of 3) that envelops the brain and spinal cord
  • meniscectomy - surgical removal of the meniscus of the knee
  • meniscus - (physics) the curved upper surface of a nonturbulent liquid in a vertical tube
  • menopausal - of or relating to the menopause
  • menopause - the time in a woman's life in which the menstrual cycle ends
  • menorrhagia - abnormally heavy or prolonged menstruation; can be a symptom of uterine tumors and can lead to anemia if prolonged
  • menses - the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
  • menstrual - of or relating to menstruation or the menses
  • menstruate - undergo menstruation
  • menstruation - the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
  • menstruum - (archaic) a solvent
  • mental - affected by a disorder of the mind
  • mentally - in your mind
  • menthol - a lotion containing menthol which gives it the smell of mint
  • mentholated - containing, or impregnated with, menthol
  • mention - an official recognition of merit
  • mentor - a wise and trusted guide and advisor
  • mentum - a projection below the mouth of certain mollusks that resembles a chin
  • meralgia - pain in the thigh
  • mercurochrome - a mercurial compound applied topically as an antiseptic; Mercurochrome is the trademark
  • mercurous - of or containing mercury
  • mercury - temperature measured by a mercury thermometer
  • mercy - alleviation of distress; showing great kindness toward the distressed
  • merely - and nothing more
  • meridian - of or happening at noon
  • mesencephalon - the middle portion of the brain
  • mesenteric - of or relating to or located in a mesentery
  • mesentery - a double layer of peritoneum that attaches to the back wall of the abdominal cavity and supports the small intestines
  • mesh - the act of interlocking or meshing
  • mesial - being in or directed toward the midline or mesial plane of the body
  • mesocolon - mesentery that holds the lower colon the back abdominal wall
  • mesoderm - the middle germ layer that develops into muscle and bone and cartilage and blood and connective tissue
  • mesodermal - relating to or derived from the mesoderm
  • mesothelioma - a rare form of carcinoma of the mesothelium lining lungs or abdomen or heart; usually associated with exposure to asbestos dust
  • mesothelium - epithelium originating in the embryonic mesoderm; lines the primordial body cavity
  • message - a communication (usually brief) that is written or spoken or signaled
  • messenger - a person who carries a message
  • mestranol - a synthetic form of estrogen used in combination with a progestin in oral contraceptives
  • metabolic - undergoing metamorphosis
  • metabolise - produce by metabolism
  • metabolism - the organic processes (in a cell or organism) that are necessary for life
  • metabolite - any substance involved in metabolism (either as a product of metabolism or as necessary for metabolism)
  • metabolize - produce by metabolism
  • metacarpal - of or relating to the metacarpus
  • metacarpus - the part of the hand between the carpus and phalanges
  • metal - containing or made of or resembling or characteristic of a metal
  • metallic - containing or made of or resembling or characteristic of a metal
  • metamorphopsia - a defect of vision in which objects appear to be distorted; usually due to a defect in the retina
  • metaphase - the second stage of mitosis
  • metaphysis - the growing part of a long bone between the diaphysis and the epiphysis
  • metastasis - the spreading of a disease to another part of the body
  • metastasise - spread throughout the body
  • metastasize - spread throughout the body
  • metastatic - relating to or affected by metastasis
  • metatarsal - of or relating to the metatarsus
  • metatarsus - the skeleton of the human foot between the toes and the tarsus; the corresponding part of the foot in birds or of the hind foot in quadrupeds
  • meter - any of various measuring instruments for measuring a quantity
  • metformin - an antidiabetic drug (trade name Glucophage) prescribed to treat type II diabetes
  • methadone - synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction
  • methane - a colorless odorless gas used as a fuel
  • methanol - a light volatile flammable poisonous liquid alcohol; used as an antifreeze and solvent and fuel and as a denaturant for ethyl alcohol
  • methicillin - antibiotic drug of the penicillin family used in the treatment of certain staphylococcal infections
  • methionine - a crystalline amino acid containing sulfur; found in most proteins and essential for nutrition
  • method - a way of doing something, especially a systematic way; implies an orderly logical arrangement (usually in steps)
  • methotrexate - toxic antimetabolite that limits cellular reproduction by acting as an antagonist to folic acid; used to treat certain cancers and psoriasis and rheumatoid arthritis
  • methyl - the univalent radical CH3- derived from methane
  • methylated - having received a methyl group
  • methylene - the bivalent radical CH2 derived from methane
  • methylenedioxymethamphetamine - a stimulant drug that is chemically related to mescaline and amphetamine and is used illicitly for its euphoric and hallucinogenic effects; it was formerly used in psychotherapy but in 1985 it was declared illegal in the United States
  • methylphenidate - central nervous system stimulant (trade name Ritalin) used in the treatment of narcolepsy in adults and attention deficit disorder in children
  • metoprolol - beta blocker (trade name Lopressor) used in treating hypertension and angina and arrhythmia and acute myocardial infarction; has adverse side effects (depression and exacerbation of congestive heart failure etc.)
  • metralgia - pain in the uterus
  • metre - rhythm as given by division into parts of equal duration
  • metric - based on the meter as a standard of measurement
  • metritis - inflammation of the lining of the uterus (of the endometrium)
  • metro - an electric railway operating below the surface of the ground (usually in a city)
  • metronidazole - antiprotozoal medication (trade name Flagyl) used to treat trichomoniasis and giardiasis
  • metroptosis - prolapse of the uterus
  • metrorrhagia - bleeding from the uterus that is not due to menstruation; usually indicative of disease (as cervical cancer)
  • mf - 300 to 3000 kilohertz
  • mg - one thousandth (1/1,000) gram
  • mi - the syllable naming the third (mediant) note of any major scale in solmization
  • micelle - an electrically charged particle built up from polymeric molecules or ions and occurring in certain colloidal electrolytic solutions like soaps and detergents
  • michael - (Old Testament) the guardian archangel of the Jews
  • miconazole - an antifungal agent usually administered in the form of a nitrate (trade name Monistat)
  • micro - extremely small in scale or scope or capability
  • microbe - a minute life form (especially a disease-causing bacterium); the term is not in technical use
  • microbial - of or involving or caused by or being microbes
  • microbiologist - a specialist in microbiology
  • microbiology - the branch of biology that studies microorganisms and their effects on humans
  • microcephalic - having an abnormally small head and underdeveloped brain
  • microcephaly - an abnormally small head and underdeveloped brain
  • micrococcus - type genus of the family Micrococcaceae
  • microcyte - an abnormally small red blood cell (less than 5 microns in diameter)
  • microcytosis - a blood disorder characterized by the presence of microcytes (abnormally small red blood cells) in the blood; often associated with anemia
  • microglia - neuroglial tissue of mesodermal origin that can become phagocytic
  • microgram - one millionth (1/1,000,000) gram
  • micrometer - caliper for measuring small distances
  • micron - a metric unit of length equal to one millionth of a meter
  • micronutrient - a substance needed only in small amounts for normal body function (e.g., vitamins or minerals)
  • microorganism - any organism of microscopic size
  • microphone - device for converting sound waves into electrical energy
  • microscope - magnifier of the image of small objects
  • microscopic - too small to be seen except under a microscope
  • microscopy - research with the use of microscopes
  • microsecond - one millionth (10^-6) of a second; one thousandth of a millisecond
  • microsporum - a genus of fungus of the family Moniliaceae; causes ringworm
  • microsurgery - surgery using operating microscopes and miniaturized precision instruments to perform intricate procedures on very small structures
  • microwave - kitchen appliance that cooks food by passing an electromagnetic wave through it; heat results from the absorption of energy by the water molecules in the food
  • micturate - eliminate urine
  • micturition - the discharge of urine
  • mid - used in combination to denote the middle
  • midazolam - an injectable form of benzodiazepine (trade name Versed) useful for sedation and for reducing pain during uncomfortable medical procedures
  • midbrain - the middle portion of the brain
  • middle - between an earlier and a later period of time
  • midline - the median plane of the body (or some part of the body)
  • midnight - 12 o'clock at night; the middle of the night
  • midriff - (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
  • midstream - the middle of a stream
  • midway - equally distant from the extremes
  • midwife - a woman skilled in aiding the delivery of babies
  • midwifery - assisting women at childbirth
  • might - physical strength
  • migraine - a severe recurring vascular headache; occurs more frequently in women than men
  • milan - the capital of Lombardy in northern Italy; has been an international center of trade and industry since the Middle Ages
  • mild - moderate in type or degree or effect or force; far from extreme
  • mildly - to a moderate degree
  • miliaria - obstruction of the sweat ducts during high heat and humidity
  • milium - a small whitish lump in the skin due to a clogged sebaceous gland
  • milk - produced by mammary glands of female mammals for feeding their young
  • milky - resembling milk in color or cloudiness; not clear
  • miller - machine tool in which metal that is secured to a carriage is fed against rotating cutters that shape it
  • milligram - one thousandth (1/1,000) gram
  • milliliter - a metric unit of volume equal to one thousandth of a liter
  • millilitre - a metric unit of volume equal to one thousandth of a liter
  • millimeter - a metric unit of length equal to one thousandth of a meter
  • millimetre - a metric unit of length equal to one thousandth of a meter
  • million - (in Roman numerals, M written with a macron over it) denoting a quantity consisting of 1,000,000 items or units
  • millionth - the ordinal number of one million in counting order
  • milton - English poet; remembered primarily as the author of an epic poem describing humanity's fall from grace (1608-1674)
  • milwaukee - largest city of Wisconsin; located in southeastern Wisconsin on the western shore of Lake Michigan; a flourishing agricultural center known for its breweries
  • mimesis - the imitative representation of nature and human behavior in art and literature
  • min - any of the forms of Chinese spoken in Fukien province
  • mind - that which is responsible for one's thoughts and feelings; the seat of the faculty of reason
  • mine - explosive device that explodes on contact; designed to destroy vehicles or ships or to kill or maim personnel
  • miner - laborer who works in a mine
  • mineral - of or containing or derived from minerals
  • mini - used of women's clothing; very short with hemline above the knee
  • minim - a United States liquid unit equal to 1/60 fluidram
  • minimal - the least possible
  • minimally - to a minimal degree
  • minimise - make small or insignificant
  • minimum - the least possible
  • minimus - the fifth digit; the little finger or little toe
  • mining - the act of extracting ores or coal etc from the earth
  • minister - the job of a head of a government department
  • minnesota - a midwestern state
  • minor - limited in size or scope
  • minute - characterized by painstaking care and detailed examination
  • minutes - a written account of what transpired at a meeting
  • miosis - reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
  • miotic - of or relating to or causing constriction of the pupil of the eye
  • mirror - polished surface that forms images by reflecting light
  • miscarriage - failure of a plan
  • miscarry - suffer a miscarriage
  • misconduct - bad or dishonest management by persons supposed to act on another's behalf
  • miserable - characterized by physical misery
  • mismatch - a bad or unsuitable match
  • mismatched - (of a contest or contestants) not fairly matched as opponents
  • missed - not caught with the senses or the mind
  • missing - not able to be found
  • missouri - a dialect of the Chiwere language spoken by the Missouri
  • mist - a thin fog with condensation near the ground
  • mistake - a wrong action attributable to bad judgment or ignorance or inattention
  • mistaken - arising from error
  • misuse - improper or excessive use
  • mit - an engineering university in Cambridge
  • mite - any of numerous very small to minute arachnids often infesting animals or plants or stored foods
  • mitochondrion - an organelle containing enzymes responsible for producing energy
  • mitomycin - a complex of antibiotic substances obtained from a streptomyces bacterium; one form (trade name Mutamycin) shows promise as an anticancer drug
  • mitosis - cell division in which the nucleus divides into nuclei containing the same number of chromosomes
  • mitral - of or relating to or located in or near the mitral valve
  • mittelschmerz - pain in the area of the ovary that is felt at the time of ovulation (usually midway through the menstrual cycle)
  • mix - the act of mixing together
  • mixed - consisting of a haphazard assortment of different kinds (even to the point of incongruity)
  • mixing - the act of mixing together
  • mixture - (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)
  • ml - a metric unit of volume equal to one thousandth of a liter
  • mm - a metric unit of length equal to one thousandth of a meter
  • mn - a midwestern state
  • mo - a midwestern state in central United States; a border state during the American Civil War, Missouri was admitted to the Confederacy without actually seceding from the Union
  • mobile - capable of changing quickly from one state or condition to another
  • mobilisation - act of assembling and putting into readiness for war or other emergency: "mobilization of the troops"
  • mobility - the quality of moving freely
  • mobilization - act of assembling and putting into readiness for war or other emergency: "mobilization of the troops"
  • modality - a method of therapy that involves physical or electrical therapeutic treatment
  • model - worthy of imitation
  • moderate - not extreme
  • moderately - in a moderate manner
  • modern - characteristic of present-day art and music and literature and architecture
  • modification - slightly modified copy; not an exact copy
  • modified - changed in form or character
  • modiolus - the central conical bony pillar of the cochlea
  • mods - a youth subculture that began in London in the early 1960s; a working-class movement with highly stylized dress and short hair; listened to rhythm and blues music and travelled on motor scooters
  • moist - slightly wet
  • moisten - make moist
  • moisture - wetness caused by water
  • mol - the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites
  • molar - pertaining to large units of behavior
  • molarity - concentration measured by the number of moles of solute per liter of solution
  • molasses - thick dark syrup produced by boiling down juice from sugar cane; especially during sugar refining
  • mole - small velvety-furred burrowing mammal having small eyes and fossorial forefeet
  • molecular - relating to simple or elementary organization
  • molecule - (physics and chemistry) the simplest structural unit of an element or compound
  • molluscum - any skin disease characterized by soft pulpy nodules
  • molybdenum - a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel
  • moment - the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value
  • monaural - relating to or having or hearing with only one ear
  • money - wealth reckoned in terms of money
  • mongolism - a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
  • monilia - any of the yeastlike imperfect fungi of the genus Monilia
  • moniliasis - an infection caused by fungi of the genus Monilia or Candida (especially Candida albicans)
  • monitor - any of various large tropical carnivorous lizards of Africa and Asia and Australia; fabled to warn of crocodiles
  • monitoring - the act of observing something (and sometimes keeping a record of it)
  • monk - a male religious living in a cloister and devoting himself to contemplation and prayer and work
  • monkey - any of various long-tailed primates (excluding the prosimians)
  • monoamine - a molecule containing one amine group (especially one that is a neurotransmitter)
  • monoblast - a large immature monocyte normally found in bone marrow
  • monochromatism - complete color blindness; colors can be differentiated only on the basis of brightness
  • monoclonal - forming or derived from a single clone
  • monocyte - a type of granular leukocyte that functions in the ingestion of bacteria
  • monocytosis - increase in the number of monocytes in the blood; symptom of monocytic leukemia
  • monomania - a mania restricted to one thing or idea
  • mononuclear - having only one nucleus
  • mononucleosis - an acute disease characterized by fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes or monocytes in the bloodstream; not highly contagious; some believe it can be transmitted by kissing
  • monoplegia - paralysis of a single limb
  • monorchism - failure of one testes to descend into the scrotum
  • monosaccharide - a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydrates
  • monosomy - chromosomal abnormality consisting of the absence of one chromosome from the normal diploid number
  • monovalent - having a valence of 1
  • monoxide - an oxide containing just one atom of oxygen in the molecule
  • monozygotic - derived from a single fertilized egg
  • mons - a mound of fatty tissue covering the pubic area in women
  • monster - (medicine) a grossly malformed and usually nonviable fetus
  • montgomery - the state capital of Alabama on the Mobile River
  • month - a time unit of approximately 30 days
  • monthly - occurring or payable every month
  • montreal - a city in southern Quebec province on the Saint Lawrence River; the largest city in Quebec and 2nd largest in Canada; the 2nd largest French-speaking city in the world
  • mood - verb inflections that express how the action or state is conceived by the speaker
  • moon - any natural satellite of a planet
  • moral - concerned with principles of right and wrong or conforming to standards of behavior and character based on those principles
  • morality - concern with the distinction between good and evil or right and wrong; right or good conduct
  • morally - with respect to moral principles
  • morbid - suggesting an unhealthy mental state
  • morbidity - an abnormally gloomy or unhealthy state of mind
  • morbilli - an acute and highly contagious viral disease marked by distinct red spots followed by a rash; occurs primarily in children
  • morbilliform - of a rash that resembles that of measles
  • more - (comparative of `much' used with mass nouns) a quantifier meaning greater in size or amount or extent or degree
  • moribund - being on the point of death; breathing your last
  • morning - the time period between dawn and noon
  • moro - a member of the predominantly Muslim people in the southern Philippines
  • morphea - localized scleroderma
  • morphia - an alkaloid narcotic drug extracted from opium; a powerful, habit-forming narcotic used to relieve pain
  • morphine - an alkaloid narcotic drug extracted from opium; a powerful, habit-forming narcotic used to relieve pain
  • morphology - the branch of biology that deals with the structure of animals and plants
  • morris - United States statesman who led the committee that produced the final draft of the United States Constitution (1752-1816)
  • mortality - the quality or state of being mortal
  • mortification - (Christianity) the act of mortifying the lusts of the flesh by self-denial and privation (especially by bodily pain or discomfort inflicted on yourself)
  • mortuary - of or relating to a funeral
  • morula - a solid mass of blastomeres that forms when the zygote splits; develops into the blastula
  • mosquito - two-winged insect whose female has a long proboscis to pierce the skin and suck the blood of humans and animals
  • most - the superlative of `much' that can be used with mass nouns and is usually preceded by `the'; a quantifier meaning the greatest in amount or extent or degree
  • mostly - in large part; mainly or chiefly
  • mother - a condition that is the inspiration for an activity or situation
  • motile - (of spores or microorganisms) capable of movement
  • motility - ability to move spontaneously and independently
  • motion - the act of changing location from one place to another
  • motionless - not in physical motion
  • motivation - the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior
  • motor - causing or able to cause motion
  • motorway - a broad highway designed for high-speed traffic
  • mottled - having spots or patches of color
  • mould - container into which liquid is poured to create a given shape when it hardens
  • mountain - a land mass that projects well above its surroundings; higher than a hill
  • mouse - any of numerous small rodents typically resembling diminutive rats having pointed snouts and small ears on elongated bodies with slender usually hairless tails
  • mouth - the opening of a jar or bottle
  • mouthful - the quantity that can be held in the mouth
  • mouthwash - a medicated solution used for gargling and rinsing the mouth
  • move - the act of deciding to do something
  • moved - being excited or provoked to the expression of an emotion
  • movement - the act of changing the location of something
  • mover - a company that moves the possessions of a family or business from one site to another
  • moving - arousing or capable of arousing deep emotion
  • mp - a military corps that enforces discipline and guards prisoners
  • mps - a widely distributed system of free and fixed macrophages derived from bone marrow
  • mr - a form of address for a man
  • mri - the use of nuclear magnetic resonance of protons to produce proton density images
  • mrna - the template for protein synthesis; the form of RNA that carries information from DNA in the nucleus to the ribosome sites of protein synthesis in the cell
  • mrs - a form of address for a married woman
  • ms - a form of address for a woman
  • msh - a hormone secreted by the anterior pituitary gland that controls the degree of pigmentation in melanocytes
  • mt - the use of computers to translate from one language to another
  • mu - the 12th letter of the Greek alphabet
  • much - (quantifier used with mass nouns) great in quantity or degree or extent
  • mucin - a nitrogenous substance found in mucous secretions; a lubricant that protects body surfaces
  • mucocutaneous - of or relating to the mucous membranes and skin
  • mucoid - relating to or resembling mucus
  • mucopurulent - containing or composed of mucus and pus
  • mucor - any mold of the genus Mucor
  • mucosa - mucus-secreting membrane lining all body cavities or passages that communicate with the exterior
  • mucosal - of or relating to mucous membranes
  • mucous - of or secreting or covered with or resembling mucus
  • mucoviscidosis - the most common congenital disease; the child's lungs and intestines and pancreas become clogged with thick mucus; caused by defect in a single gene; there is no cure
  • mucus - protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium
  • mud - slanderous remarks or charges
  • muddled - confused and vague; used especially of thinking
  • multifactorial - involving or depending on several factors or causes (especially pertaining to a condition or disease resulting from the interaction of many genes)
  • multiple - having or involving or consisting of more than one part or entity or individual
  • multiplication - an arithmetic operation that is the inverse of division; the product of two numbers is computed
  • multiply - in several ways; in a multiple manner
  • multivitamin - a pill or tablet containing several vitamins
  • mumps - an acute contagious viral disease characterized by fever and by swelling of the parotid glands
  • munich - the capital and largest city of Bavaria in southwestern Germany
  • mural - of or relating to walls
  • murder - unlawful premeditated killing of a human being by a human being
  • murdered - killed unlawfully
  • murmur - a schwa that is incidental to the pronunciation of a consonant
  • murphy - an edible tuber native to South America; a staple food of Ireland
  • murray - an southeast Australian river; flows westward and then south into the Indian Ocean at Adelaide
  • muscle - authority or power or force (especially when used in a coercive way)
  • muscular - having or suggesting great physical power or force
  • musculoskeletal - relating to muscles and skeleton
  • music - musical activity (singing or whistling etc.)
  • musical - characteristic of or resembling or accompanied by music
  • must - highly recommended
  • mustard - leaves eaten as cooked greens
  • mutant - tending to undergo or resulting from mutation
  • mutate - undergo mutation
  • mutation - a change or alteration in form or qualities
  • mute - expressed without speech; especially because words would be inappropriate or inadequate
  • mutilation - an injury that deprives you of a limb or other important body part
  • mutism - the condition of being unable or unwilling to speak
  • myalgia - pain in a muscle or group of muscles
  • myalgic - of or relating to myalgia
  • myasthenia - any muscular weakness
  • mycelium - the vegetative part of a fungus consisting of a mass of branching threadlike hyphae
  • mycobacterium - rod-shaped bacteria some saprophytic or causing diseases
  • mycology - the branch of botany that studies fungi and fungus-caused diseases
  • mycoplasma - any of a group of small parasitic bacteria that lack a cell walls and can survive without oxygen; can cause pneumonia and urinary tract infection
  • mycosis - an inflammatory condition caused by a fungus
  • mydriasis - reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs
  • mydriatic - a drug that causes the pupil of the eye to dilate; used to aid eye examinations
  • myelin - a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
  • myelinated - (of neurons) covered with a layer of myelin
  • myelitis - inflammation of the spinal cord
  • myeloblast - a precursor of leukocytes that normally occurs only in bone marrow
  • myelocyte - an immature leukocyte normally found in bone marrow
  • myelofibrosis - fibrosis of the bone marrow
  • myelogram - X-ray film of the spinal cord and spinal nerve roots and subarachnoid space
  • myelography - roentgenography of the spinal cord to detect possible lesions (usually after injection of a contrast medium into the subarachnoid space)
  • myeloid - of or relating to bone marrow
  • myeloma - a tumor of the bone marrow (usually malignant) composed of cells normally found in bone marrow
  • myelomeningocele - a congenital defect of the central nervous system in which a sac containing part of the spinal cord and its meninges protrude through a gap in the vertebral column; frequently accompanied by hydrocephalus and mental retardation
  • myiasis - infestation of the body by the larvae of flies (usually through a wound or other opening) or any disease resulting from such infestation
  • myocardial - of or relating to the myocardium
  • myocarditis - inflammation of the myocardium (the muscular tissue of the heart)
  • myocardium - the middle muscular layer of the heart wall
  • myoclonus - a clonic spasm of a muscle or muscle group
  • myodynia - pain in a muscle or group of muscles
  • myofibril - one of many contractile filaments that make up a striated muscle fiber
  • myoglobin - a hemoprotein that receives oxygen from hemoglobin and stores it in the tissues until needed
  • myoglobinuria - the presence of myoglobin in the urine
  • myogram - a graphical recording of muscle activity
  • myology - the branch of physiology that studies muscles
  • myoma - a benign tumor composed of muscle tissue
  • myometritis - inflammation of the myometrium
  • myometrium - the smooth muscle forming the wall of the uterus
  • myopathy - any pathology of the muscles that is not attributable to nerve dysfunction
  • myopia - (ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred
  • myopic - lacking foresight or scope
  • myosarcoma - sarcoma of muscle tissue
  • myosis - reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
  • myositis - inflammation of muscle tissue
  • myotic - of or relating to or causing constriction of the pupil of the eye
  • myotomy - surgical incision or division of a muscle
  • myotonia - abnormally long muscular contractions; slow relaxation of a muscle after a contraction
  • myotonic - of or relating to or caused by myotonia
  • myringa - the membrane in the ear that vibrates to sound
  • myringoplasty - surgical repair of a perforated eardrum with a tissue graft
  • myringotomy - surgical incision into the eardrum (to relieve pressure or release pus from the middle ear)
  • myxedema - hypothyroidism marked by dry skin and swellings around lips and nose as well as mental deterioration
  • myxoedema - hypothyroidism marked by dry skin and swellings around lips and nose as well as mental deterioration
  • myxoma - a benign tumor of connective tissue containing jellylike material
  • myxovirus - any of a group of RNA viruses including those that cause influenza and mumps

Table of contents:

.A | .B | .C | .D | .E | .F | .G | .H | .I | .J | .K | .L | .M

.N | .O | .P | .Q | .R | .S | .T | .U | .V | .W | .X | .Y | .Z

N

  • na - a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
  • naga - Kamarupan languages spoken in northeastern India and western Burma
  • nagging - continually complaining or faultfinding
  • nail - a thin pointed piece of metal that is hammered into materials as a fastener
  • naked - lacking any cover
  • naloxone - a potent narcotic antagonist (trade name Narcan) especially effective with morphine
  • name - by the sanction or authority of
  • named - bearing the author's name
  • names - verbal abuse; a crude substitute for argument
  • nancy - a city in northeastern France in Lorraine
  • nandrolone - an androgen (trade names Durabolin or Kabolin) that is used to treat testosterone deficiency or breast cancer or osteoporosis
  • nanometre - a metric unit of length equal to one billionth of a meter
  • nanosecond - one billionth (10^-9) of a second; one thousandth of a microsecond
  • nape - the back side of the neck
  • napkin - a small piece of table linen that is used to wipe the mouth and to cover the lap in order to protect clothing
  • nappy - of hair in small tight curls
  • naproxen - a nonsteroidal anti-inflammatory drug (trade name Naprosyn) used in the treatment of arthritis and musculoskeletal inflammation and moderate pain
  • narcissism - an exceptional interest in and admiration for yourself
  • narcolepsy - a sleep disorder characterized by sudden and uncontrollable episodes of deep sleep
  • narcoleptic - of or relating to narcolepsy
  • narcosis - unconsciousness induced by narcotics or anesthesia
  • narcotic - inducing mental lethargy
  • naris - any of the openings to the nasal cavities that allow air to flow through the cavities to the pharynx
  • narrow - limited in size or scope
  • narrowed - having the opening reduced squeezed
  • narrowing - (of circumstances) tending to constrict freedom
  • nasal - sounding as if the nose were pinched
  • nascent - being born or beginning
  • nasion - the craniometric point at the bridge of the nose where the frontal and nasal bones of the skull meet
  • nasopharyngeal - of or relating to or located near the nasopharynx
  • nasopharynx - cavity forming the upper part of the pharynx
  • nasty - exasperatingly difficult to handle or circumvent
  • nates - the fleshy part of the human body that you sit on
  • nation - the people who live in a nation or country
  • national - concerned with or applicable to or belonging to an entire nation or country
  • native - belonging to one by birth
  • natriuretic - of or relating to natriuresis
  • natural - being talented through inherited qualities
  • naturalist - a biologist knowledgeable about natural history (especially botany and zoology)
  • naturally - as might be expected
  • nature - the complex of emotional and intellectual attributes that determine a person's characteristic actions and reactions
  • naturopathy - a method of treating disease using food and exercise and heat to assist the natural healing process
  • nausea - disgust so strong it makes you feel sick
  • nauseated - feeling nausea; feeling about to vomit
  • nauseous - feeling nausea; feeling about to vomit
  • navel - scar where the umbilical cord was attached
  • navicular - shaped like a boat
  • nb - a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something
  • nbe - the compass point that is one point east (clockwise) of due north
  • nd - a state of north central United States bordering on Canada
  • ne - a midwestern state on the Great Plains
  • near - not far distant in time or space or degree or circumstances
  • nearer - (comparative of `near' or `close') within a shorter distance
  • nearest - (superlative of `near' or `close') within the shortest distance
  • nearly - (of actions or states) slightly short of or not quite accomplished
  • nearsighted - unable to see distant objects clearly
  • nearsightedness - (ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred
  • neat - without water
  • nebraska - a midwestern state on the Great Plains
  • nebula - (pathology) a faint cloudy spot on the cornea
  • nebuliser - a dispenser that turns a liquid (such as perfume) into a fine mist
  • nebulizer - a dispenser that turns a liquid (such as perfume) into a fine mist
  • necessarily - in an essential manner
  • necessary - unavoidably determined by prior circumstances
  • necessity - anything indispensable
  • neck - an opening in a garment for the neck of the wearer; a part of the garment near the wearer's neck
  • necrobiosis - (physiology) the normal degeneration and death of living cells (as in various epithelial cells)
  • necrology - a list of people who died recently
  • necrophilia - an irresistible sexual attraction to dead bodies
  • necrophilism - an irresistible sexual attraction to dead bodies
  • necropsy - an examination and dissection of a dead body to determine cause of death or the changes produced by disease
  • necrosis - the localized death of living cells (as from infection or the interruption of blood supply)
  • necrotic - relating to or affected by necrosis
  • need - anything that is necessary but lacking
  • needed - necessary for relief or supply
  • needle - a sharp pointed implement (usually steel)
  • needs - in such a manner as could not be otherwise
  • negative - expressing or consisting of a negation or refusal or denial
  • negativism - characterized by habitual skepticism and a disagreeable tendency to deny or oppose or resist suggestions or commands
  • neglect - the state of something that has been unused and neglected
  • negligence - failure to act with the prudence that a reasonable person would exercise under the same circumstances
  • negligent - marked by insufficient care or attention
  • neighbouring - situated near one another
  • nematode - unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic
  • neomycin - an antibiotic obtained from an actinomycete and used (as a sulphate under the trade name Neobiotic) as an intestinal antiseptic in surgery
  • neonatal - relating to or affecting the infant during the first month after birth
  • neonate - a baby from birth to four weeks
  • neonatology - that branch of pediatric medicine concerned with the newborn; the diagnosis and treatment of neonates
  • neoplasia - the pathological process that results in the formation and growth of a tumor
  • neoplasm - an abnormal new mass of tissue that serves no purpose
  • neoplastic - of or related to or having the properties of a neoplasm
  • neostigmine - a cholinergic drug (trade name Prostigmin) used to treat some ophthalmic conditions and to treat myasthenia gravis
  • nephralgia - pain in the kidney (usually felt in the loins)
  • nephrectomy - surgical removal of a kidney
  • nephritic - of or relating to the kidneys
  • nephritis - an inflammation of the kidney
  • nephroblastoma - malignant renal tumor of young children characterized by hypertension and blood in the urine and the presence of a palpable mass
  • nephrocalcinosis - renal lithiasis in which calcium deposits form in the renal parenchyma and result in reduced kidney function and blood in the urine
  • nephrolith - a calculus formed in the kidney
  • nephrolithiasis - the presence of kidney stones (calculi) in the kidney
  • nephrology - the branch of medicine concerned with the kidney - its development and anatomy and physiology and disorders
  • nephron - any of the small tubules that are the excretory units of the vertebrate kidney
  • nephropathy - a disease affecting the kidneys
  • nephroptosis - prolapse of the kidney
  • nephrosclerosis - kidney disease that is usually associated with hypertension; sclerosis of the renal arterioles reduces blood flow that can lead to kidney failure and heart failure
  • nephrosis - a disease affecting the kidneys
  • nephrotomy - incision into a kidney (usually to remove a kidney stone)
  • nephrotoxic - toxic to the kidney
  • nerve - any bundle of nerve fibers running to various organs and tissues of the body
  • nerves - control of your emotions
  • nervous - easily agitated
  • nervously - in an anxiously nervous manner
  • nervousness - a sensitive or highly strung temperament
  • nervy - showing or requiring courage and contempt of danger
  • ness - a strip of land projecting into a body of water
  • nest - a kind of gun emplacement
  • net - remaining after all deductions
  • nether - located below or beneath something else
  • netherlands - a constitutional monarchy in western Europe on the North Sea; half the country lies below sea level
  • nettle - any of numerous plants having stinging hairs that cause skin irritation on contact (especially of the genus Urtica or family Urticaceae)
  • network - (broadcasting) a communication system consisting of a group of broadcasting stations that all transmit the same programs
  • neural - of or relating to neurons
  • neuralgia - acute spasmodic pain along the course of one or more nerves
  • neurasthenia - nervous breakdown (not in technical use)
  • neurasthenic - of or relating to or suffering from neurasthenia
  • neurectomy - surgical removal of all or part of a nerve
  • neurilemma - thin membranous sheath around a nerve fiber
  • neurinoma - tumor (usually benign) of the sheath surrounding a nerve
  • neuritis - inflammation of a nerve accompanied by pain and sometimes loss of function
  • neuroanatomy - the anatomy of the nervous system
  • neuroblast - a cell from which a nerve cell develops
  • neuroblastoma - malignant tumor containing embryonic nerve cells; usually metastasizes quickly
  • neurodermatitis - dermatitis in which localized areas (especially the forearms or back of the neck or outer part of the ankle) itch persistently; cause is unknown
  • neuroendocrine - of or relating to the nervous and endocrine systems (especially as they function together)
  • neuroepithelioma - malignant tumor of the neuroepithelium
  • neuroepithelium - epithelium associated with special sense organs and containing sensory nerve endings
  • neurofibroma - tumor of the fibrous covering of a peripheral nerve
  • neurofibromatosis - autosomal dominant disease characterized by numerous neurofibromas and by spots on the skin and often by developmental abnormalities
  • neurogenesis - the development of nerve tissues
  • neurogenic - arising in or stimulated by nerve tissues
  • neuroglia - sustentacular tissue that surrounds and supports neurons in the central nervous system; glial and neural cells together compose the tissue of the central nervous system
  • neurohormone - a hormone that is released by nerve impulses (e.g., norepinephrine or vasopressin)
  • neurohypophysis - the posterior lobe of the pituitary body; primarily glandular in nature
  • neurolemma - thin membranous sheath around a nerve fiber
  • neuroleptic - tranquilizer used to treat psychotic conditions when a calming effect is desired
  • neurological - of or relating to or used in or practicing neurology
  • neurologist - a medical specialist in the nervous system and the disorders affecting it
  • neurology - (neurology) the branch of medicine that deals with the nervous system and its disorders
  • neuroma - any tumor derived from cells of the nervous system
  • neuromuscular - affecting or characteristic of both neural and muscular tissue
  • neuron - a cell that is specialized to conduct nerve impulses
  • neuropathy - any pathology of the peripheral nerves
  • neurophysiology - the branch of neuroscience that studies the physiology of the nervous system
  • neuroplasty - plastic surgery of the nerves
  • neuropsychiatric - of or relating to neuropsychiatry
  • neuropsychiatry - the branch of medicine dealing with mental disorders attributable to diseases of the nervous system
  • neurosarcoma - a malignant neoplasm of nerve tissue and fibrous tissue and connective tissue
  • neurosis - a mental or personality disturbance not attributable to any known neurological or organic dysfunction
  • neurosurgeon - someone who does surgery on the nervous system (especially the brain)
  • neurosurgery - any surgery that involves the nervous system (brain or spinal cord or peripheral nerves)
  • neurosyphilis - syphilis of the central nervous system
  • neurotic - affected with emotional disorder
  • neurotically - in a neurotic manner
  • neurotoxic - poisonous to nerves or nerve cells
  • neurotransmitter - transmits nerve impulses across a synapse
  • neurotropic - (of a virus, toxin, or chemical) tending to attack or affect the nervous system preferentially
  • neuter - of grammatical gender
  • neutral - of something that is lacking hue
  • neutralise - make chemically neutral
  • neutralised - made neutral in some respect; deprived of distinctive characteristics
  • neutralize - make chemically neutral
  • neutropenia - leukopenia in which the decrease is primarily in number of neutrophils (the chief phagocytic leukocyte)
  • neutrophil - the chief phagocytic leukocyte; stains with either basic or acid dyes
  • never - not ever; at no time in the past or future
  • new - unfamiliar
  • newborn - having just or recently arisen or come into existence
  • newly - very recently
  • news - new information about specific and timely events
  • newton - English mathematician and physicist; remembered for developing the calculus and for his law of gravitation and his three laws of motion (1642-1727)
  • next - immediately following in time or order
  • nexus - a connected series or group
  • nh - a state in New England; one of the original 13 colonies
  • ni - a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite
  • niacin - a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract
  • nib - the writing point of a pen
  • nice - pleasant or pleasing or agreeable in nature or appearance
  • nicholas - a bishop in Asia Minor who is associated with Santa Claus (4th century)
  • nick - (British slang) a prison
  • nicotine - an alkaloid poison that occurs in tobacco; used in medicine and as an insecticide
  • nictation - a reflex that closes and opens the eyes rapidly
  • nictitation - a reflex that closes and opens the eyes rapidly
  • nidation - (embryology) the organic process whereby a fertilized egg becomes implanted in the lining of the uterus of placental mammals
  • nidus - a nest in which spiders or insects deposit their eggs
  • nifedipine - calcium blocker (trade name Procardia); appears to increase the risk of recurrent heart attacks
  • nigeria - a republic in West Africa on the Gulf of Guinea; gained independence from Britain in 1960; most populous African country
  • night - darkness
  • nightingale - European songbird noted for its melodious nocturnal song
  • nightmare - a terrifying or deeply upsetting dream
  • nightshade - any of numerous shrubs or herbs or vines of the genus Solanum; most are poisonous though many bear edible fruit
  • nigra - (ethnic slur) extremely offensive name for a Black person
  • nihilism - a revolutionary doctrine that advocates destruction of the social system for its own sake
  • nihilistic - of or relating to nihilism
  • nil - a quantity of no importance
  • nile - the world's longest river (4150 miles); flows northward through eastern Africa into the Mediterranean; the Nile River valley in Egypt was the site of the world's first great civilization
  • nine - denoting a quantity consisting of one more than eight and one less than ten
  • ninety - being ten more than eighty
  • ninth - coming next after the eighth and just before the tenth in position
  • nip - a small sharp bite or snip
  • nipping - pleasantly cold and invigorating
  • nipple - a flexible cap on a baby's feeding bottle or pacifier
  • nit - egg or young of an insect parasitic on mammals especially a sucking louse; often attached to a hair or item of clothing
  • nitrate - any compound containing the nitrate group (such as a salt or ester of nitric acid)
  • nitrazepam - a hypnotic and sedative drug of the benzodiazepine type
  • nitre - (KNO3) used especially as a fertilizer and explosive
  • nitric - of or containing nitrogen
  • nitrofurantoin - derivative of nitrofuran used as an antibacterial medicine (trade name Macrodantin) effective against a broad range of Gram-positive and Gram-negative bacteria; used to treat infections of the urinary tract
  • nitrogen - a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
  • nitrogenous - of or relating to or containing nitrogen
  • nitroglycerin - a heavy yellow poisonous oily explosive liquid obtained by nitrating glycerol; used in making explosives and medically as a vasodilator (trade names Nitrospan and Nitrostat)
  • nitrous - of or containing nitrogen
  • nj - a Mid-Atlantic state on the Atlantic; one of the original 13 colonies
  • nm - a state in southwestern United States on the Mexican border
  • nmr - resonance of protons to radiation in a magnetic field
  • no - quantifier; used with either mass nouns or plural count nouns for indicating a complete or almost complete lack or zero quantity of
  • nobel - Swedish chemist remembered for his invention of dynamite and for the bequest that created the Nobel prizes (1833-1896)
  • nobody - a person of no influence
  • nociceptive - caused by or in response to pain
  • noctambulation - walking by a person who is asleep
  • nocturia - excessive urination at night; especially common in older men
  • nocturnal - belonging to or active during the night
  • nod - the act of nodding the head
  • nodding - having branches or flower heads that bend downward
  • node - (computer science) any computer that is hooked up to a computer network
  • nodular - having nodules or occurring in the form of nodules
  • nodule - a small node
  • noise - incomprehensibility resulting from irrelevant information or meaningless facts or remarks
  • noisily - with much noise or loud and unpleasant sound
  • noisy - attracting attention by showiness or bright colors
  • noma - acute ulceration of the mucous membranes of the mouth or genitals; often seen in undernourished children
  • non - negation of a word or group of words
  • none - not any
  • nongranular - not having granules
  • noninflammatory - not inflammatory
  • nonmalignant - not threatening to life or health; not malignant
  • nonproprietary - not protected by trademark or patent or copyright
  • nonsteroidal - not steroidal or not having the effects of steroid hormones
  • nonsurgical - not surgical
  • nonunion - not belonging to or not allowing affiliation with a trade union
  • noon - the middle of the day
  • noradrenaline - a catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses
  • norepinephrine - a catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses
  • norm - a standard or model or pattern regarded as typical
  • norma - a small constellation in the southern hemisphere near Lupus and Ara in the Milky Way
  • normal - conforming with or constituting a norm or standard or level or type or social norm; not abnormal
  • normally - under normal conditions
  • normotensive - having normal blood pressure
  • north - situated in or facing or moving toward or coming from the north
  • northern - situated in or coming from regions of the north
  • northumberland - the northernmost county of England; has many Roman remains (including Hadrian's Wall)
  • nortriptyline - a tricyclic antidepressant drug (trade name Pamelor) used along with psychotherapy to treat dysthymic depression; may interact dangerously if taken with other drugs
  • norway - a constitutional monarchy in northern Europe on the western side of the Scandinavian Peninsula; achieved independence from Sweden in 1905
  • norwegian - of or relating to Norway or its people or culture or language
  • nose - a front that resembles a human nose (especially the front of an aircraft)
  • nosebleed - bleeding from the nose
  • nosocomial - taking place or originating in a hospital
  • nosology - the branch of medical science dealing with the classification of disease
  • nostril - either one of the two external openings to the nasal cavity in the nose
  • not - negation of a word or group of words
  • notch - a small cut
  • note - a characteristic emotional quality
  • noted - worthy of notice or attention
  • noteworthy - worthy of notice
  • nothing - in no way; to no degree
  • notice - the act of noticing or paying attention