micrometer screw Hear it!

micrometer screw definition

mi·crom·eter screw (mī kräm′ət ər)

a finely threaded screw of definite pitch, with a head graduated to show how much the screw has been moved in or out: used in micrometers, etc. to give fine measurements, as of thickness, sometimes to .0001 of an inch

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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