Also called Western Dvina. Latvian Daugava. a river rising in the Valdai Hills in the W Russian Federation, flowing W through Byelorussia (Belarus) and Latvia to the Baltic Sea at Riga. About 640 miles (1030) long.
2.
Also called Northern Dvina. a river in the N Russian Federation in Europe, flowing NW into the White Sea. About 470 miles (750 km) long.
British Dictionary definitions for Dvina
Dvina
/Russian dviˈna/
noun
1.
Northern Dvina, a river in NW Russia, formed by the confluence of the Sukhona and Yug Rivers and flowing northwest to Dvina Bay in the White Sea. Length: 750 km (466 miles) Russian name Severnaya Dvina
2.
Western Dvina, a river rising in W Russia, in the Valdai Hills and flowing south and southwest then northwest to the Gulf of Riga. Length: 1021 km (634 miles) Russian name Zapadnaya Dvina (ˈzapədnəjə) Latvian name Daugava