knucklebone

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noun knuck·le·bone \ˈnək-əl-ˌbōn\

Definition of knucklebone

  1. 1 :  a bone (such as a metatarsus or metacarpus of a sheep) used in games and formerly in divination

  2. 2 knucklebones plural in form but singular in construction :  a game played with knucklebones or jacks

1577

First Known Use of knucklebone

1577


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a rounded knoll or a ridge of ice

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