Source : Webster's Revised Unabridged Dictionary (1913)

Pongo \Pon"go\, n. (Zo["o]l.)
   Any large ape; especially, the chimpanzee and the
   orang-outang.

Source : WordNet®

Pongo
     n : type genus of the family Pongidae: orangutans [syn: {genus
         Pongo}]