[ plat-i-rahyn, -rin ]
/ ˈplæt ɪˌraɪn, -rɪn /


Anthropology. having a broad, flat-bridged nose.
belonging or pertaining to the primate group or superfamily Platyrrhini, comprising the New World monkeys, having a broad, flat nose and usually a long, prehensile tail.


a platyrrhine animal.
Also plat·yr·rhin·i·an [plat-i-rin-ee-uh n] /ˌplæt ɪˈrɪn i ən/.

Origin of platyrrhine

1835–45; < New Latin Platyrrhini, plural of platyrhinus < Greek platy- platy- + -rhīn- -nosed, adj. derivative of rhī́s, stem rhīn- nose, snout; cf. catarrhine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for platyrrhine

British Dictionary definitions for platyrrhine


platyrrhinian (ˌplætɪˈrɪnɪən)

/ (ˈplætɪˌraɪn) /


(esp of New World monkeys) having widely separated nostrils opening to the side of the face
(of humans) having an unusually short wide nose


an animal or person with this characteristic
Compare catarrhine

Word Origin for platyrrhine

C19: from New Latin platyrrhinus, from platy- + -rrhinus, from Greek rhis nose
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for platyrrhine

[ plătĭ-rīn′ ]

Of or relating to the New World monkeys, distinguished from the Old World monkeys by a broad nasal septum and widely separated nostrils that generally open to the side.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.