Carom billiards, sometimes called carambole billiards or simply carambole (and in some cases used as a synonym for the game of straight rail from which many carom games derive), is the overarching title of a family of billiards games generally played on cloth-covered, 1.5-by-3.0-metre (5 by 10 ft) pocketless tables, which often feature heated slate beds.
English billiards was originally called the winning and losing carambole game, folding in the names of three predecessor games, the winning game, the losing game and the carambole game (an early form of straight rail), that combined to form it. Origins. The winning game was played with two white balls, and was a 12-point contest.
Snooker is played with 22 balls, billiards or carom billiards are played with3 balls and pool is played with 16 balls. The rules of the games are different. Carom billiards is the pocket less billiard game whereas pool and snooker are pocket games. The pockets in snooker are small as compared to pool.