Union of Soviet Socialist Republics

noun

a former federal union of 15 constituent republics, in E Europe and W and N Asia, comprising the larger part of the former Russian Empire: dissolved in December 1991. 8,650,069 sq. mi. (22,402,200 sq. km). Capital: Moscow. Abbreviation: U.S.S.R., USSR
Also called Russia, Soviet Union.

British Dictionary definitions for soviet union

Union of Soviet Socialist Republics

noun

the official name of the former Soviet Union

Cultural definitions for soviet union

Union of Soviet Socialist Republics

Official name of the former Soviet Union.