micron
One-thousandth of a millimetre, and hence one millionth of a metre; symbol μm.
| Food and Nutrition: micrometre |
One-thousandth of a millimetre, and hence one millionth of a metre; symbol μm.
| 5min Related Video: Micrometre |
| Sports Science and Medicine: micrometre |
A unit of length equal to 1/1 000 000 m (10−6 m).
| Wikipedia: Micrometre |
| SI units | |
|---|---|
| 1.000×10−6 m | 1.0000 μm |
| US customary / Imperial units | |
| 3.281×10−6 ft | 39.37×10−6 in |
A micrometre or micron (American spelling: micrometer; symbol µm) is one millionth of a metre, or equivalently one thousandth of a millimetre. It can be written in scientific notation as 1×10−6 m, meaning 1⁄1000000 m.
A strand of human hair is about 100 µm wide.[1] Red blood cells are 7 µm in diameter.[1]
The micrometre is a common unit of measurement for wavelengths of infrared radiation. The name micron and the solitary symbol µ (both of which were official between 1879 and 1967 [2]) are still used (especially in astronomy and the semiconductor industry) to denote a micrometre.
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| nanometre | |
| micro- | |
| micron (length, pressure) |
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| How many metres are there in a micrometre? |
Copyrights:
![]() | Food and Nutrition. A Dictionary of Food and Nutrition. Copyright © 1995, 2003, 2005 by A. E. Bender and D. A. Bender. All rights reserved. Read more | |
![]() | Sports Science and Medicine. The Oxford Dictionary of Sports Science & Medicine. Copyright © Michael Kent 1998, 2006, 2007. All rights reserved. Read more | |
![]() | Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Micrometre". Read more |
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