| 单词 | roulette |
| 释义 | roulette n. 1. a gambling game using a table in which a ball is dropped on to a revolving wheel with numbered compartments, players betting on the number at which the ball comes to rest. 2. Math. a curve generated by a point on a curve rolling on another. 3. a a revolving toothed wheel used in engraving. b a similar wheel for making perforations between postage stamps in a sheet. Derivatives rouletted adj. (in sense 3b). Etymology: F, dimin. of rouelle f. LL rotella dimin. of L rota wheel |
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