/kol"euh beuhs, keuh loh"-/ , n. , pl. colobuses, colobi /-buy', -buy/ .
any of several large, slender African monkeys of the genus Colobus, lacking thumbs and having long silky fur of black and white ( C. polykomos ), black and reddish-brown ( C. badius ), or olive ( C. verus ): now dwindling.
[ 1811; kolobós docked, maimed; so named from the mutilated appearance of the thumbless hands ]