掌しょう骨こつ

noun

metacarpal bone; metacarpus

Anatomical term for the bones of the palm. Rare in everyday language; the more common term is 中手骨 (ちゅうしゅこつ).

See also: 中手骨

• 掌しょう骨こつは手てのひらにある五ご本ほんの細ほそ長ながい骨ほねです。

  The metacarpal bones are the five long bones in the palm of the hand.