Tatar Syllabification: (Ta·tar)Pronunciation: /ˈtätər/Definition of Tatar noun 1a member of a Turkic people living in Tatarstan and various other parts of Russia and Ukraine. They are the descendants of the Tartars who ruled central Asia in the 14th century. 2the Turkic language of the Tatars. adjective relating to the Tatars or their language. Origin:the Turkic name of a Tartar tribeTatar in other Oxford dictionaries Definition of Tatar in the British & World English dictionary