elephant's tooth en · NOUN
Etymology
So called because originally made from ivory.
Meanings
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(archaic, slang) A die (cube thrown in games of chance).
1876, Charles Dickens, All the Year Round That no minute might be wasted, the gay gallants of the time generally had a dice-box and a cast of dice in their pockets. This was convenient in the extreme, as, in the intervals of racing, a main could be thrown, and when out hunting, a check was looked on with no disfavour by those who treasured every opportunity of "flirting with the elephant's tooth."