ibexPronunciation: /ˈʌɪbɛks/Translate ibex | into Italian Definition of ibex noun (plural ibexes) a wild mountain goat with long, thick ridged horns and a beard, found in parts of central Asia and in Ethiopia. Genus Capra, family Bovidae: the widespread C. ibex, and the Spanish ibex (C. pyrenaica) of the Pyrenees Origin: early 17th century: from Latinibex in other Oxford dictionaries Definition of ibex in the US English dictionary