superball

noun
UK /ˈsuːpəbɔːl/
US /ˈsuːpərbɔːl/

A superball is a small rubber ball that bounces very high.

The boy threw his superball at the wall and it bounced over the fence.


OTHER MEANINGS

2. A type of very elastic synthetic rubber used to make bouncing balls.

The toy is made from superball rubber that stretches and springs back.

3. In sports, an informal term for a ball hit or thrown with exceptional speed or power.

The pitcher threw a superball that the batter could not touch.

4. A brand name for a popular high-bouncing toy ball.

She got a SuperBall in her party bag.