ˈklastik, -aas-, -ais- adjective
Etymology: International Scientific Vocabulary clast- (from Greek klast os broken, from klan to break) + -ic; originally formed as German klastisch — more at gladiator
1. : capable of being taken apart — used of anatomical models made of detachable pieces
2. : of, belonging to, or being a rock (as a conglomerate or a sandstone) made up of fragments of preexisting rocks