Gnu n. (Written also gnoo) (Zool.) One of two species of large South African antelopes of the genus Catoblephas, having a mane and bushy tail, and curved horns in both sexes. Note: The common gnu or wildebeest (Catoblephas gnu) is plain brown; the brindled gnu or blue wildebeest (C. gorgon) is larger, with transverse stripes of black on the neck and shoulders.
... rhinoceros, hitherto unknown, the gnu—an animal in form something between the horse and the ox—the gazelle, the baboon, and the hippopotamus, the habits of which were previously imperfectly known, Sparrman describes a curious bird, of great service to the natives, which he calls ... — Celebrated Travels and Travellers - Part 2. The Great Navigators of the Eighteenth Century • Jules Verne