roulette: 意味と定義

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.