Pronunciation: (klas'tik), [key]
1. Biol.breaking up into fragments or separate portions; dividing into parts.
2. pertaining to an anatomical model made up of detachable pieces.
3. Geol.noting or pertaining to rock or rocks composed of fragments or particles of older rocks or previously existing solid matter; fragmental.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.