roulette

• a line generated by a point on one figure rolling around a second figure
• a wheel with teeth for making a row of perforations
• a gambling game in which players bet on which compartment of a revolving wheel a small ball will come to rest in
• 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
• A small toothed wheel used by engravers to roll over a plate in order to order to produce rows of dots
• A similar wheel used to roughen the surface of a plate, as in making alterations in a mezzotint
• the curve traced by any point in the plane of a given curve when the latter rolls, without sliding, over another fixed curve
• Residential area (city, town, village) in the United States of America (USA) in Pennsylvania

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