Definition of palmigrade in US English:

palmigrade

adjective

Zoology
  • That walks on the soles of the feet; specifically (of a primate) that places the palm of the hand on the ground in walking.

Origin

Mid 19th century; earliest use found in Edward Hitchcock (1793–1864). From palmi- + -grade.

Pronunciation

palmigrade

/ˈpalmɪɡreɪd/