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| D'alembert Betting System |
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[1] A progressive system of betting where you increase your bet by one unit after a loss and decrease your bet by one unit after a win. [2] A progressive system of betting whereby two numbers are cancelled every time a previous bet is won, and one number, the total of two end numbers, is added whenever a previous bet is lost.
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| Dead Table |
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A table that is manned and ready for action but has no players.
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| Dealer |
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The casino employee who staffs the games offered.
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| Derniere |
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A French term for last and refers to the last group of 12 numbers in the Dozen Bet.
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| Double Zero |
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Number on the wheel. Green in color. Can be wagered the same way as numbers 1-36.
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| Double-Up System of Betting |
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A betting system whereby bets are doubled after a loss in hopes of recouping the previous loss. One specific type of Double-Up System is known as the Martingale System.
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| Double-Zero Wheel |
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A roulette wheel that has a total of 38 numbers (0 and 00 and numbers 1-36). The number sequence is (clockwise starting with 0): 0, 28, 9, 26, 30, 11, 7, 20, 32, 17, 5, 22, 34, 15, 3, 24, 36, 13, 1, 00, 27, 10, 25, 29, 12, 8, 19, 31, 18, 6, 21, 33, 16, 4, 23, 35, 14, 2. Originally, the double-zero wheel started in Europe and the single-zero wheel started in America. But, Europeans liked the single-zero wheel better, and Americans liked the double-zero wheel better so they switched. Today, the American wheel and double-zero wheel are synonymous.
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| Dozen Bet |
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A wager on twelve numbers on the roulette layout at the same time. Numbers 1-12, 13-24, or 25-36.
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| Drop |
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The casino term for the total amount of money and markers wagered at the tables.
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| Drop Box |
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A box where money is dropped after the player cashes into a game and receives his chips. The box is usually located under the table
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| Dumping |
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A casino table that is losing money to the players.
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