- adj platyrrhinian of or related to New World monkeys having nostrils far apart or to people with broad noses
- n platyrrhinian hairy-faced arboreal monkeys having widely separated nostrils and long usually prehensile tails
Century Dictionary and Cyclopedia
- platyrrhinian In zoology, platyrrhine, as a monkey.
- platyrrhinian In anthropology, having broad flat nasal bones, as a person, a people, or a skull.
- n platyrrhinian A platyrrhinian animal, person, or skull.