Pronunciation: (rush'un),[key] —adj. of or pertaining to Russia, its people, or their language.
—n. 1. a native or inhabitant of Russia.
2. a member of a Slavic people, the dominant ethnic group in the Russian Federation, whose historical homeland lies along the upper Volga and Oka rivers and adjacent areas.
3. the Slavic language of this people, written in the Cyrillic alphabet: the official language of Russia or the Russian Federation. Abbr.: Russ, Russ.
4. Informal.See Russian dressing.