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Meaning of rock-ribbed

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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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