noun plural
Usage: capitalized
Etymology: New Latin, from platy- + Greek -rrhina, neuter plural of -rrhin -nosed, from rhin-, rhis nose — more at rhin-
in many classifications : a division of Anthropoidea comprising the new-world monkeys all of which have a broad nasal septum, usually 36 teeth, and often a prehensile tail — compare catarrhina , cebidae