Pronunciation: (vol'gu, vōl'-; Russ. vôl'gu), [key]
a river flowing from the Valdai Hills in the W Russian Federation E and then S to the Caspian Sea: the longest river in Europe. 2325 mi. (3745 km).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.