Définition "roulette" dans le dictionnaire Collins English Dictionary & Thesaurus

roulette n

1 a gambling game in which a ball is dropped onto a spinning horizontal wheel divided into 37 or 38 coloured and numbered slots, with players betting on the slot into which the ball will fall

a a toothed wheel for making a line of perforations

b a tiny slit made by such a wheel on a sheet of stamps as an aid to tearing it apart

3 a curve generated by a point on one curve rolling on another vb

4 to use a roulette on (something), as in engraving, making stationery, etc.
(C18: from French, from rouelle a little wheel, from roue a wheel, from Latin rota)

Russian roulette n

1 a game of chance in which each player in turn spins the cylinder of a revolver loaded with only one cartridge and presses the trigger with the barrel against his own head

2 any foolish or potentially suicidal undertaking