|1.||(of sedimentary rock, etc) composed of fragments of pre-existing rock that have been transported some distance from their points of origin|
|2.||biology dividing into parts: a clastic cell|
|3.||able to be dismantled for study or observation: a clastic model of the brain|
|[C19: from Greek klastos shattered, from klan to break]|
|clast (klāst) Pronunciation Key
A rock fragment or grain resulting from the breakdown of larger rocks.
clastic adjective (klās'tĭk)