knuckle bone
noun
1
- a bone forming or corresponding to a knuckle指节骨, 肘子骨。
1.1
- a knuckle of meat肘子肉。
2
- ( knuckle bones) animal knuckle bones used in the game of jacks抓子游戏中用的动物跖骨。
2.1
- the game of jacks抓子游戏。