clast

[ klast ]

noun
  1. a grain of sediment, silt, sand, gravel, etc., especially as a constituent fragment of a clastic rock formation, as distinguished from a chemical or biogenic component of such a formation.

Origin of clast

1
First recorded in 1950–55; probably back formation from clastic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use clast in a sentence

Scientific definitions for clast

clast

[ klăst ]


  1. A rock fragment or grain resulting from the breakdown of larger rocks.

Other words from clast

  • clastic adjective (klăstĭk)

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