clast: Meaning and Definition of


Pronunciation: (klast), [key]
— n.
  1. a grain of sediment, silt, sand, gravel, etc., esp. as a constituent fragment of a clastic rock formation, as distinguished from a chemical or biogenic component of such a formation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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