10¹⁵, a thousand billion (long scale) or a million milliard.
A dynamical system in which a particle alternates between motion in a straight line and specular reflections from a boundary.
Pertaining to the game of billiards.
A shot in billiards or snooker in which the cue ball strikes two other balls; a carom.
A thousand million, proposed as an alternative to the (now little used) British milliard and the (ambiguous, in the UK) US billion.
An unspecified large number (of).