buhrstone Hear it!

buhrstone definition

buhr·stone (bʉr′stōn′)

noun

  1. a hard, siliceous rock used to make millstones
  2. a millstone cut from such a rock

Etymology: buhr, var. of burr + stone

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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