パワーボール

noun

gyroscopic exercise tool

A handheld gyroscopic exercise device that generates resistance when spun. Used for grip and wrist training.

from English power ball

• パワーボールで手て首くびを鍛きたえている。

  I'm training my wrists with a Powerball.

noun

Powerball (US lottery)

Refers specifically to the American multi-state lottery game. Not a generic term for lotteries.

• アメリカのパワーボールの当とう選せん金きん額がくはとても大おおきい。

  The Powerball jackpot in the US is very large.