Dictionary
cat•a•cla•sis
Pronunciation: (kat"u-klā'sis, ku-tak'lu-sis), [key]—
n. Petrol.
a process of deformation or metamorphism in which the grains of a rock are fractured and rotated.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.