Dictionary
o•ver•thrust
Pronunciation: (ō'vur-thrust"), [key]—
n. Geol.
1. a thrust fault with a low dip and a large slip.
2. a thrust fault in which the hanging wall was the one that moved (opposed to
underthrust).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.