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1. A gambling game in which the players bet on which slot of a rotating disk a small ball will come to rest in.
a. 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.
b. Any of the short consecutive incisions made between individual stamps in a sheet for easy separation.
tr.v. rou·lett·ed, rou·lett·ing, rou·lettes
To mark or divide with a roulette.

[French, from Old French ruelete, feminine diminutive of ruele, diminutive of roue, wheel, from Latin rota; see ret- in Indo-European roots.]


(Tools) cut or engraved with a roulette