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millimicron |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Millimicron \Mil"li*mi`cron\, n. [Milli- + micron.] The thousandish part of a micron or the millionth part of a millimeter; -- a unit of length used in measuring light waves, etc From WordNet r 1.6 [wn]: millimicron n : a metric unit of length equal to one billionth of a meter [syn: {nanometer}, {nanometre}, {micromillimeter}, {micromillimetre}]
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