[plat.yr.rhine] adj (1857) 1 [NL Platyrrhina, fr. Gk platyrrhin-, platyrrhis broad-nosed, fr. platys + rhin-, rhis nose]: of, relating to, or being any of a division (Platyrrhina) of monkeys all of which are New World monkeys and are characterized by a broad nasal septum, usu. 36 teeth, and often a prehensile tail
2. [Gk platyrrhin-, platyrrhis]: having a short broad nose -- platyrrhine n