n. 微米

[计] 微米

[化] 微米; μ

[医] 微米

[ noun ]
a metric unit of length equal to one millionth of a meter
<noun.quantity>

Micromillimeter \Mi`cro*mil"li*me`ter\, n. [Micro- +
millimeter.]
The millionth part of a meter.

Note: The millionth part of a meter is now termed a {micron},
and the word micromillimeter does not conform to the IS
use of the prefix {micro-}.
[1913 Webster +PJC]


micron \mic"ron\, n. [NL., fr. Gr. mikro`s small.] (Physics)
A measure of length; the thousandth part of one millimeter;
the millionth part of a meter.