1. Soviet Socialist Republic - Noun
2. Soviet Socialist Republic - Proper noun
one of the states that formerly made up the former Union of Soviet Socialist Republics (1922-1991)
Source: WordNetAbout 60% of the Soviet Union’s coal, 67.6% of its iron, and 43% of its electricity came from the Ukrainian Soviet Socialist Republic, according to the Institute of History. Source: Internet
That didn’t pan out, but the new Soviet commissar for nationalities, Josef Stalin (yes, Stalin) reneged and established NK as an autonomous within the Azerbaijani Soviet Socialist Republic (SSR). Source: Internet