rebounder n.— «The room also has a rebounder, a small trampoline used for stimulating the lymphatic system.» —“Create sacred spaces in home” by Mary Beth Breckenridge Akron Beacon Journal (Ohio) Jan. 30...
trampoline effect n.— «Wood bat advocates are concerned that balls hit off metal bats are subject to what is known as a trampoline effect: When a ball hits a wooden bat, the ball compresses at the instant of impact and loses much of its...