UdmurtPronunciation: /ˈʊdmʊət/Definition of Udmurt noun 1a member of a people of central Russia, living mainly in Udmurtia. 2 [mass noun] the Finno-Ugric language of the Udmurts, with about 500,000 speakers. Formerly called Votyak. adjective relating to or denoting the Udmurts or their language.