楔骨

xiēgǔ
  1. (anatomy) cuneiform; cuneiform bone
  2. cuneiform; cuneiform bone

Wiktionary

Entry Composition

1 楔 xiē
  1. wedge
  2. to hammer in (variant of 揳 xiē)
=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