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millstone definition

mill·stone (-stōn′)

noun

  1. either of a pair of large, flat, round stones between which grain or other substances are ground
  2. stone used for these, usually a hard sandstone or conglomerate
  3. a heavy burden
  4. something that grinds, pulverizes, or crushes

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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