Millimetre
Millimetre
Millimetre (pronunciation: /ˈmɪlɪˌmiːtər/), often abbreviated as mm, is a unit of length in the International System of Units (SI). It is defined as one thousandth of a metre, the SI base unit of length. The term originates from the Latin words mille meaning "thousand" and metrum meaning "measure".
Usage
The millimetre is commonly used in many fields of science, including physics, engineering, and medicine. For example, in medicine, it is often used to measure small lengths or distances, such as the thickness of a skin lesion or the diameter of a blood vessel.
Related Terms
- Centimetre: A unit of length equal to 10 millimetres.
- Metre: The base unit of length in the SI system, equal to 1,000 millimetres.
- Micrometre: A unit of length equal to one thousandth of a millimetre.
- Nanometre: A unit of length equal to one millionth of a millimetre.
See Also
External links
- Medical encyclopedia article on Millimetre
- Wikipedia's article - Millimetre
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