Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
Russian [ˈrʌ m(f) adj&n] adj (native Russian) ру́сский#; (belonging to Russian Federation) росси́йский#
n ру́сский[-ая] $ ; (LING) ру́сский*язы́к#
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.