Found 2 items, similar to micron.
English → English (WordNet) Definition: micron micron n : a metric unit of length equal to one millionth of a meter [syn: micrometer]
English → English (gcide) Definition: micron 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. [1913 Webster]