長ちょう骨こつ

noun

long bone

Anatomical term for bones that are longer than they are wide, such as the femur or humerus.

• 大だい腿たい骨こつは人じん体たいで最もっとも長ながい長ちょう骨こつの一ひとつです。

  The femur is one of the longest long bones in the human body.