mandrill

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A large fierce baboon (Papio sphinx syn. Mandrillus sphinx) of western Africa, having a beard, crest, and mane and brilliant blue, purple, and scarlet facial markings in the adult male.

Century Dictionary and Cyclopedia

1. n. A kind of baboon; the great blue-faced or rib-nosed baboon; the hog-ape, Cynocephalus maimon or mormon, the largest and most formidable, ferocious, and hideous of baboons. The canine teeth are of enormous size, causing a protuberance of the cheeks, which are naked and fantastically striped with brilliant colors. The ischial callosities are of great size and bright-red color. The animal is often seen in captivity. The mandrills are natives of the western coast of Africa, where they associate in large troops, which are the terror of the negroes. They often plunder villages and cultivated fields with impunity. See cut under baboon.

Wiktionary

1. n. A primate, Mandrillus sphinx, recognized by its colorful face and rump

GNU Webster's 1913

1. n. (Zoöl.) A large West African baboon (Papio sphinx syn. Mandrillus sphinx, formerly Cynocephalus mormon syn. Papio mormon). The adult male has, on the sides of the nose, large, naked, grooved swellings, conspicuously striped with blue and red. It is an endangered species.

WordNet 3.0

1. n. baboon of west Africa with a bright red and blue muzzle and blue hindquarters