prop. n. A genus of macaques including the rhesus monkey (Macaca mulatta), much used in laboratory biomedical research. Formerly called Macacus.
Syn. -- genus Macaca. [ WordNet 1.5 ]

n. The rhesus monkey of South Asia; used in medical research.
Syn. -- rhesus, rhesus monkey. [ WordNet 1.5 ]

n. An Indian macaque with a bonnetlike tuft of hair.
Syn. -- bonnet macaque, bonnet monkey, capped macaque, crown monkey. [ WordNet 1.5 ]

n. The Barbary ape, a tailless macaque of rocky cliffs and forests of Northwest Africa and Gibralter. [ WordNet 1.5 ]