ethnolinguistics Syllabification: (eth·no·lin·guis·tics)Pronunciation: /ˌeTHnōliNGˈgwistiks/Definition of ethnolinguistics noun [treated as singular] the branch of linguistics concerned with the relations between linguistic and cultural behavior. Derivatives ethnolinguistPronunciation: /-ˈliNGgwist/ noun ethnolinguistic adjective ethnolinguistics in other Oxford dictionaries Definition of ethnolinguistics in the British & World English dictionary