ibex

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Any of several wild goats of the genus Capra, especially C. ibex, native to mountainous regions of Eurasia and northern Africa and having long, ridged, backward-curving horns.

Century Dictionary and Cyclopedia

1. n. A wild goat, the bouquetin, steinbok, or other species of the genus Ibex. There are several different species, inhabiting mountain-ranges of Europe, Asia, and Africa, the best-known of which, and the one to which the name was originally given, is the steinbok or bouquetin of the Alps and Apennines, Capra ibex or Ibex ibex. The male is about 4½ feet long, and 2 feet 8 inches high at the shoulders; it sometimes attains a weight of 200 pounds. The color is brownish- or reddish-gray in summer, and gray in winter. The horns are very large (sometimes 3 feet along the curve), closely approximated at the base, diverging regularly to the tip, curved sharply backward and outward, and longitudinally ridged on each side, the flattened front between the ridges being crossed with many transverse ridges or nodes. It has a short dark beard, and the ears and tail are partly white. The female is smaller, of a gray color, and its horns are shorter and more like those of the domestic goat. The kids are gray. The ibex of the Pyrenees is a closely related species, Ibex pyrenaica; its horns are more divergent for some distance and then incurved at the tip, presenting when viewed together from the front a resemblance to a lyre; each horn is compressed, and keeled in front. See ægagrus.
2. n. [capitalized] A genus of ibexes, or a subgenus of Capra.

Wiktionary

1. n. A type of wild mountain goat of the genus Capra, such as the species Capra ibex.

GNU Webster's 1913

1. n. (Zoöl.) One of several species of wild goats having very large, recurved horns, transversely ridged in front; -- called also steinbok.

WordNet 3.0

1. n. wild goat of mountain areas of Eurasia and northern Africa having large recurved horns