abbreviation Etymology: Russian Rossiĭskaya Sovetskaya Federativnaya Sotsialisticheskaya Respublika Russian Soviet Federated Socialist Republic
RSFSR
Meaning of RSFSR in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012