Definition of: roulette

(r·let′) noun
1. A game played at a table divided into spaces numbered and colored red and black, and having in the center a rotating disk on which a ball is rolled until it drops into one of 37 correspondingly numbered and colored spaces, a player winning if he has staked his money on that space or its color or on a combination including it.
2. An engraver's disk of tempered steel, as for tracing points on a copper-plate; also, a draftsman's wheel for making dotted lines.
3. In philately, a series of incisions, made in any of several shapes, without removal of paper. Compare PERFORATION.
—v.t. ·let·ted, ·let·ting To use or produce a roulette upon. [<F, dim. of rouelle, dim. of roue wheel <L rota]