Meaning of micrometer


Pronunciation: (mī-krom'i-tur), [key]
— n.
  1. any of various devices for measuring minute distances, angles, etc., as in connection with a telescope or microscope.
  2. Also calleda precision instrument with a spindle moved by a finely threaded screw, for the measurement of thicknesses and short lengths, commonly used by machinists for turning shafts or boring holes.


Pronunciation: (mī'krō-mē"tur), [key]
— n.
  1. micron (def. 1).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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