末まっ節せつ骨こつ

noun

distal phalanx

Anatomical term for the bone at the tip of a finger or toe.

• 末まっ節せつ骨こつは指ゆびの先せん端たんにある小ちいさな骨ほねです。

  The distal phalanx is the small bone at the tip of the finger.