millimicron

mil·li·mi·cron

 (mĭl′ə-mī′krŏn)

n.

A unit of length equal to one thousandth (10^-3) of a micrometer or one billionth (10^-9) of a meter.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

millimicron

(ˈmɪlɪˌmaɪkrɒn)

n

(Units) an obsolete name for nanometre

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

nan•o•me•ter

(ˈnæn əˌmi tər, ˈneɪ nə-)

n.

a unit of measure equal to one billionth of a meter. Abbr.: nm

[1960–65]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Thesaurus

Noun

1.

millimicron - a metric unit of length equal to one billionth of a meter micromillimeter, micromillimetre, nanometer, nanometre, nm metric linear unit - a linear unit of distance in metric terms A, angstrom, angstrom unit - a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation micrometer, micron - a metric unit of length equal to one millionth of a meter

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