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millimicron

[mil-uh-mahy-kron] /ˈmɪl əˌmaɪ krɒn/
noun, plural millimicrons, millimicra
[mil-uh-mahy-kruh] /ˈmɪl əˌmaɪ krə/ (Show IPA)
1.
a unit of length equal to one thousandth of a micron; one-billionth of a meter. Symbol: mμ.
Compare nanometer.
Origin
1900-1905
1900-05; milli- + micron
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for millimicra

millimicron

/ˈmɪlɪˌmaɪkrɒn/
noun
1.
an obsolete name for a nanometre; one millionth of a millimetre
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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millimicra in Medicine

millimicron mil·li·mi·cron (mĭl'ə-mī'krŏn)
n.

Abbr. A unit of length that is equal to one thousandth (10-3) of a micrometer or one billionth (10-9) of a meter; nanometer.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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