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Definition of "millimicron" []

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

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "millimicron" in a sentence
  • "The units commonly used for this measurement are the millimicron which is denoted by the symbol uu, which equals one millioneth of a millimeter; and the Angstrom Unit (A.U.), which is one-tenth millioneth of a millimeter."