Pronunciation: (ra-pel', ru-), [key]
—n., v., -pelled, -pel•ling.
(in mountaineering) the act or method of moving down a steep incline or past an overhang by means of a double rope secured above and placed around the body, usually under the left thigh and over the right shoulder, and paid out gradually in the descent.
to descend by means of a rappel.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.