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limestone: Meaning and Definition of

lime•stone

Pronunciation: (līm'stōn"), [key]
— n.
  1. a sedimentary rock consisting predominantly of calcium carbonate, varieties of which are formed from the skeletons of marine microorganisms and coral: used as a building stone and in the manufacture of lime. Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
limes limestone lettuce
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