noun Date: 1577 a bone (as a metatarsus or metacarpus of a sheep) used in games and formerly in divination, a game played with ~s or jacks
KNUCKLEBONE
Meaning of KNUCKLEBONE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012