roulette

A gambling game in which the players bet on which slot of a rotating disk a small ball will come to rest in.

A small toothed disk of tempered steel attached to a handle and used to make rows of dots, slits, or perforations, as in engraving or on a sheet of postage stamps.

Any of the short consecutive incisions made between individual stamps in a sheet for easy separation.

To mark or divide with a roulette.

An engravers’ tool, used for producing a series of dots on a copperplate, and in mezzotint to darken any part which has been too much burnished.

A cylindrical object used to curl hair upon, whether of the head or of a wig.

In geometry, a curve traced by any point in the plane of a given curve when this plane rolls on this curve over another curve.

A game of chance, played at a table, in the center of which is a cavity surmounted by a revolving disk, the circumference of which is generally divided into 38 compartments colored black and red alternately, and numbered 1 to 36, with a zero and double zero.