9 Grammatical Pitfalls


[mil-uh-mee-ter] /ˈmɪl əˌmi tər/
a unit of length equal to one thousandth of a meter and equivalent to 0.03937 inch.
Abbreviation: mm.
Origin of millimeter
1800-10; < French millimètre. See milli-, meter1
Related forms
[mil-uh-me-trik] /ˌmɪl əˈmɛ trɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for millimeter
  • If every little millimeter counts in the height of your children, a spring or fall birth might give them an edge.
  • If you show someone a millimeter next to a meter, the difference is obvious and large.
  • The other ensconces itself in the micro-habitat of the sebaceous gland, less than a millimeter away.
  • Instead it's bits of plastic less than one millimeter in size.
  • But scientists believe that the rate of rise was essentially the same for several thousand years: about one millimeter per year.
  • Tons of rock must be dissolved to retrieve a few hundred embryos, none of which are more than a fraction of a millimeter across.
  • Each cell measures about one-ten-thousandth of a millimeter wide.
  • It was recently discovered that the first millimeter of water in the ocean was a living system.
  • The viruses infect a cubic millimeter or two of tissue.
  • It's a long process, her broken bones are moved a millimeter further apart each day.
British Dictionary definitions for millimeter


one thousandth of a metre mm
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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Word Origin and History for millimeter

also millimetre, 1802, from French millimetre; see milli- + meter (n.2).

Online Etymology Dictionary, © 2010 Douglas Harper
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millimeter in Medicine

millimeter mil·li·me·ter (mĭl'ə-mē'tər)

Abbr. mm A unit of length equal to one thousandth (10-3) of a meter (0.0394 inch).

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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millimeter in Science
A unit of length in the metric system equal to 0.001 meter. See Table at measurement.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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