an independent socialist state 1917–22 and then the largest Soviet Socialist Republic of the Soviet Union 1922–91. Abbreviations: RSFSR, R.S.F.S.R.
- Also called Russian Republic, Rus·sian So·cia·list Fed·er·a·tive So·vi·et Re·pub·lic .
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British Dictionary definitions for Russian Soviet Federative Socialist Republic
(formerly) the largest administrative division of the Soviet Union: Abbreviation: RSFSR
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012