Pronunciation: (tram"pu-lēn', tram'pu-lēn", -lin), [key]
1. a sheet, usually of canvas, attached by resilient cords or springs to a horizontal frame several feet above the floor, used by acrobats and gymnasts as a springboard in tumbling.
2. Naut.a fabric deck stretched on the braces connecting the hulls of a catamaran or trimaran, resembling a gymnastic trampoline.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.