Definition of pithecine in US English:

pithecine

adjective

Zoology
  • = pitheciine.

noun

Zoology
  • 1An ape, especially a higher ape; an apeman. Compare pithecoidrare.

  • 2= pitheciine.

Origin

Late 19th century (in an earlier sense). From ancient Greek πίθηκος ape + -ine.