ariel Syllabification: (ar·i·el)Pronunciation: /ˈe(ə)rēəl/Definition of ariel noun a gazelle found in the Middle East and North Africa. Genus Gazella, family Bovidae: the mountain gazelle (G. gazella) or the dorcas gazelle (G. dorcas) Origin: mid 19th century: from Arabic ῾aryalariel in other Oxford dictionaries Definition of ariel in the British & World English dictionary