髀骨

bìgǔ
  1. (anatomy) femur; thighbone
  2. femur; thighbone

Wiktionary

Entry Composition

1 髀 bì
  1. buttocks
  2. thigh
=2 骨 gū
  1. used in 骨碌碌 gūlùlù
  2. used in 骨碌 gūlu
  3. used in 骨朵 gūduo
=2 骨 gǔ bone