platyrhine vs platyrhinian

platyrhine and platyrhinian both are adjectives.

Word	Noun	Adjective	Verb	Adverb
platyrhine	No	Yes	No	No
platyrhinian	No	Yes	No	No

As adjectives, platyrhine and platyrhinian are synonyms defined as:

platyrhine and platyrhinian: of or related to New World monkeys having nostrils far apart or to people with broad noses

Other synonyms of platyrhine include broadnosed, platyrrhine, platyrrhinian, platyrrhinic.

platyrhine (adjective)	platyrhinian (adjective)
of or related to New World monkeys having nostrils far apart or to people with broad noses	of or related to New World monkeys having nostrils far apart or to people with broad noses