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object ball: Meaning and Definition of

ob'ject ball"

Pronunciation: [key]
? Billiards, Pool. Billiards,Pool.
  1. the first ball struck by the cue ball in making a carom. Cf.
  2. a ball to be struck by the cue ball; any ball except the cue ball.
Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease.