From Longman Dictionary of Contemporary Englishtrampolinetram‧po‧line /ˈtræmpəliːn/ noun [countable] DSOa piece of equipment that you jump up and down on as a sport. It consists of a metal frame with a piece of strong cloth stretched tightly over it.
Examples from the Corpus
trampoline• Dellinger Web A fabric web imbedded into the midsole, which acts like a trampoline.• Anthea was told to interview some one while bouncing up and down on a trampoline.• We can not sleep: a dragon above our bed trampolines upon exiguous hairs.• Far left is Andrea Holmes, world synchronised trampoline champion.• His fingers opened, the knife bounced on the trampoline webbing and fell through into the sea.• He fell backwards, already rolling as he struck the trampoline between the hulls.• Shaking the spinnaker out of its bag, he curled it on to the trampoline while checking the cotton lashings that held it rolled.Origin trampoline (1700-1800) Spanish trampolín, from Italian trampolino 