- roulette, line roulette - a line generated by a point on one figure rolling around a second figure
--1 is a kind of curve, curved shape
--1 has particulars: cycloid; epicycloid; hypocycloid - roulette, toothed wheel - a wheel with teeth for making a row of perforations
--2 is a kind of wheel
- roulette - a gambling game in which players bet on which compartment of a revolving wheel a small ball will come to rest in
--3 is a kind of game of chance, gambling game