A pool ball that bears the number nine.
A game in billiards played with a cue ball and nine object balls, numbered 1 to 9, in which the cue ball must strike the lowest-numbered ball on the table first, the object being to pocket the number nine ball last.
(pool) A form of rotation played with the object balls numbered one through nine, in which the winner is the one who pockets the nine ball, either in sequence or by means of a combination shot.
Origin of nine-ball
- Nine colored balls are used, in addition to the cue ball.