a river in W Africa, in Ghana, formed by the confluence of the Black Volta and the White Volta and flowing S into the Bight of Benin. ab. 250 mi. (400 km) long; with branches ab. 1240 mi. (1995 km) long.
Volta (vōl'tə) Pronunciation Key
Italian physicist who in 1800 invented the voltaic pile, which was the first source of continuous electric current. The volt unit of electromotive force is named for him.