[ Gael., son. ] A prefix, in names of Scotch origin, signifying son. [ 1913 Webster ]

prop. n. Shortened form of Macintosh, a brand name for a personal computer; as, the latest Mac has great new features. [ PJC ]

n. Shortened form of mackintosh, a waterproof raincoat made of rubberized fabric.
Syn. -- mackintosh, mac, mack. [ WordNet 1.5 ]

pos>adj. 1. portraying human injury or death in a way so as to inspiring shock or horror; gruesome; ghastly; as, macabre tortures conceived by madmen. [ Also spelled macaber. ]
Syn. -- ghastly, grisly, gruesome, lurid. [ WordNet 1.5 ]

2. Pertaining to or portraying the grim aspects of death, or the allegorical dance of death. [ PJC ]

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 ]

‖n. [ Cf. Pg. macaco. ] (Zool.) Any one of several species of lemurs, as the ruffed lemur (Lemur macaco), and the ring-tailed lemur (Lemur catta). [ 1913 Webster ]

‖n. [ NL., a word of African origin. Cf. Macaco, Macaque. ] (Zool.) A genus of monkeys, found in Asia and the East Indies, now usually called Macaca. They have short tails and prominent eyebrows. See also Macaca. [ 1913 Webster ]