Dictionary
rock-ribbed
Pronunciation: (rok'ribd"), [key]—
adj.
1. having ribs or ridges of rock:
the rock-ribbed coast of Maine.
2. unyielding; confirmed and uncompromising:
a rock-ribbed conservative. Also,rock'-rib".Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.