rap•pel
Pronunciation: (ra-pel', ru-), [key] — n., v., -pelled, -pel•ling.
—n. - (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.
—v.i. - to descend by means of a rappel.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.