metacarpal bone; metacarpus
Anatomical term for the bones of the palm, between the wrist and fingers.
The metacarpal bones are the five long bones in the palm of the hand.
Compound of 中 (chū, 'middle') + 手 (shu, 'hand') + 骨 (kotsu, 'bone'), literally 'middle-hand bone'. The reading is on'yomi throughout.