From WordNet (r) 3.0 (2006) [wn]:
Russian
adj 1: of or pertaining to or characteristic of Russia or its
people or culture or language; "Russian dancing"
n 1: a native or inhabitant of Russia
2: the Slavic language that is the official language of Russia
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Russian \Rus"sian\ (r[u^]sh"an or r[udd]"shan; 277), a.
Of or pertaining to Russia, its inhabitants, or language. --
n. A native or inhabitant of Russia; the language of Russia.
Russian bath. See under Bath.
[1913 Webster] Russian Church