Pronunciation: (byel"ō-rush'un, bel"ō-), [key]
of or pertaining to Byelorussia, its people, or their language.
1. a native or inhabitant of Byelorussia.
2. an East Slavic language, spoken by the inhabitants of Byelorussia and written in the Cyrillic alphabet. Cf. Slavic (def. 1). Also,Belorussian.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.