What is a sheet or web supported by springs in a metal frame and used as a springboard?

Trampoline - a piece of equipment that has a sheet of strong cloth attached by springs to a metal frame, used for jumping up and down for exercise or as a sport - Merriam-Webster

Origin of TRAMPOLINE - Italian trampolino springboard, from trampol stilts, of Germanic origin; akin to Middle Low German trampen to stamp

First Known Use: 1798

Rihanna jumping on a trampoline is your new happy place. See the picture at MTV.com.

Tags: springboardtrampolinesheet 
Wednesday, January 29 2014
Source: http://www.wordswarm.net/dictionary/trampoline.html