river in W Russia, Belarus, & Ukraine, flowing from the Valdai Hills south and southwest into the Black Sea: 1,420 mi (2,285 km)
Ukrainian name Dni′pro
A river rising near Smolensk in western Russia and flowing about 2,285 km (1,420 mi) southward through Belarus and Ukraine to the Black Sea. It has been a major commercial waterway since the ninth century.
From Russian Днепр (Dnepr).