- Biology. breaking up into fragments or separate portions; dividing into parts.
- pertaining to an anatomical model made up of detachable pieces.
- Geology. noting or pertaining to rock or rocks composed of fragments or particles of older rocks or previously existing solid matter; fragmental.
Origin of clastic
1870–75; < Greek klastós broken in pieces (klas- variant stem of klân to break + -tos verbal adjective suffix) + -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (of sedimentary rock, etc) composed of fragments of pre-existing rock that have been transported some distance from their points of origin
- biology dividing into partsa clastic cell
- able to be dismantled for study or observationa clastic model of the brain
C19: from Greek klastos shattered, from klan to break
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for non-clastic
"consisting of broken pieces," 1875, in geology, from Latinized form of Greek klastos "broken in pieces," from klan, klaein "to break," from PIE *kla-, variant of root *kel- "to strike."
Online Etymology Dictionary, © 2010 Douglas Harper
- Breaking up into pieces or exhibiting a tendency to break or divide.
- Separable into parts or having removable sections, as an anatomical model.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.