ibexEnglishOxford New American Dictionaryibex /ˈīˌbeks, ˈaɪˌbɛks / ▸ noun (plural ibexes) a wild goat with long, thick ridged horns and a beard, found in the mountains of the Alps, Pyrenees, central Asia, and Ethiopia. Genus Capra, family Bovidae: the widespread C. ibex, and the Spanish ibex (C. pyrenaica) of the Pyrenees. – ORIGIN early 17th century : from Latin.