Source : Webster's Revised Unabridged Dictionary (1913)

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.

Source : WordNet®

micron
     n : a metric unit of length equal to one millionth of a meter
         [syn: {micrometer}]

Source : Free On-Line Dictionary of Computing

micron
     
        {micrometre}

Micron
     
        {Micron Electronics, Inc.}