Pronunciation: (rib'insk; Russ. ri'byinsk),[key] —n. 1. a city in the W Russian Federation in Europe, NNE of Moscow, on the Volga near the Rybinsk Reservoir. 254,000. Formerly, Andropov (1984–90), Shcherbakov (1946–57).
2. Also called Ry'binsk Res'ervoir. a reservoir in the N central Russian Federation in Europe, on the upper Volga River. 1768 sq. mi. (4579 sq. km).