roulette >> rʊˈlɛt
Definition: [noun] a gambling game in which a ball is dropped on to a revolving wheel with numbered compartments, the players betting on the number at which the ball comes to rest.
Definition: [noun] a tool or machine with a revolving toothed wheel, used in engraving or for making slit-shaped perforations between postage stamps.
Definition: [verb] make slit-shaped perforations in (paper, especially sheets of postage stamps).
Example: the pages are rouletted next to the binding