noun.
A deep narrow valley or gorge in the earth's surface worn by running water.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a deep narrow steep-sided valley (especially one formed by running water)
Word Usage
"His casual remark to Dr. Werner, and to the landscape, as Grushnitsky's corpse topples into a ravine is a masterpiece of the laconic: "Finita la commedia!""