An "announced bet" is a bet called by the player for which he immediately definitioh enough money to cover the amount of the bet on the table, prior to the outcome of the spin or hand in progress being known.cyberspace gambling IMGUR ROULETTE Roulette wheel definition: a spinning horizontal wheel divided into 37 or 38 coloured and numbered slots, that is | Meaning, pronunciation, translations and. Define roulette wheel. roulette wheel synonyms, roulette wheel pronunciation, roulette wheel translation, English dictionary definition of roulette wheel. Noun 1. Roulette definition, a game of chance played at a table marked off with numbers from 1 to 36, one or two zeros, and several other sections affording the players a.