中ちゅう節せつ骨こつ

noun

middle phalanx

Anatomical term for the middle bone of a finger or toe. Used in medical and biological contexts.

• 中ちゅう節せつ骨こつは指ゆびの第だい二に関かん節せつを構こう成せいする骨ほねです。

  The middle phalanx is the bone that forms the second joint of the finger.