platyrrhine

/ˈplætɪraɪn/
adjective
  1. Relating to a group of primates (New World monkeys) that have a broad, flat nose with nostrils that face sideways.
    • Unlike Old World monkeys, platyrrhine species have a wider nasal septum.
    • Scientists study platyrrhine skulls to understand primate evolution.
    • The platyrrhine monkeys of South America are known for their prehensile tails.
Antonyms
noun
  1. A New World monkey belonging to the group Platyrrhini, characterized by a broad nose and sideways-facing nostrils.
    • Many platyrrhines are arboreal and live in large social groups.
    • Platyrrhines are sometimes called 'flat-nosed' primates.
    • The capuchin is a well-known platyrrhine found in tropical forests.