gerenuk Syllabification: (ger·e·nuk)Pronunciation: /ˈgerəˌno͝ok/Definition of gerenuk noun a slender East African antelope with a long neck, often browsing on tall bushes by standing on its hind legs. Litocranius walleri, family Bovidae Origin: late 19th century: from Somaligerenuk in other Oxford dictionaries Definition of gerenuk in the British & World English dictionary