Noun | 1. | ![]() monkey - any of various long-tailed primates (excluding the prosimians) Platyrrhini, superfamily Platyrrhini - New World monkeys: capuchin; douroucouli; howler monkey; saki; spider monkey; squirrel monkey; titi; uakari; woolly monkey; marmoset; tamarin marmoset - small soft-furred South American and Central American monkey with claws instead of nails Cebus capucinus, capuchin, ringtail - monkey of Central America and South America having thick hair on the head that resembles a monk's cowl Aotus trivirgatus, douroucouli - nocturnal monkey of Central America and South America with large eyes and thick fur howler monkey, howler - monkey of tropical South American forests having a loud howling cry saki - small arboreal monkey of tropical South America with long hair and bushy nonprehensile tail uakari - medium-sized tree-dwelling monkey of the Amazon basin; only New World monkey with a short tail titi monkey, titi - small South American monkeys with long beautiful fur and long nonprehensile tail Ateles geoffroyi, spider monkey - arboreal monkey of tropical America with long slender legs and long prehensile tail Saimiri sciureus, squirrel monkey - small long-tailed monkey of Central American and South America with greenish fur and black muzzle woolly monkey - large monkeys with dark skin and woolly fur of the Amazon and Orinoco basins |