Universe
Universe
Universe (/ˈjuːnɪvɜːrs/; from Latin: universus) is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.
Etymology
The term "Universe" is derived from the Old French word Univers, which in turn originates from the Latin word Universus. Universus, in Latin, means "combined into one, whole".
Definition
The Universe is a vast expanse of space which is believed to contain all the matter and energy in existence. It includes everything from the tiniest particles of matter to the largest galaxies. The Universe also includes all the laws of nature and all the physical constants that define those laws.
Related Terms
- Galaxy: A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.
- Star: A star is an astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
- Planet: A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity.
- Space: Space is the boundless three-dimensional extent in which objects and events have relative position and direction.
- Time: Time is the indefinite continued progress of existence and events that occur in an apparently irreversible succession from the past, through the present, into the future.
- Matter: Matter is any substance that has mass and takes up space by having volume.
- Energy: In physics, energy is the quantitative property that must be transferred to a body or physical system to perform work on the body, or to heat it.
External links
- Medical encyclopedia article on Universe
- Wikipedia's article - Universe
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski