Roulette meaning in Urdu & English

(1) - Roulette (n.) the curve traced by any point in the plane of a given curve when the latter rolls, without sliding, over another fixed curve. See Cycloid, and Epycycloid.
(2) - Roulette (n.) A similar wheel used to roughen the surface of a plate, as in making alterations in a mezzotint.
(3) - Roulette (n.) A small toothed wheel used by engravers to roll over a plate in order to order to produce rows of dots.
(4) - Roulette (n.) A game of chance, in which a small ball is made to move round rapidly on a circle divided off into numbered red and black spaces, the one on which it stops indicating the result of a variety of wagers permitted by the game.

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