a major river in central Africa that rises as the Lualaba River south of Kisangani in northern Democratic Republic of Congo (formerly Zaire). It flows for 2,880 miles (4,630 km) in a great curve to the west and then turns southwest to form the border between the Congo and the Democratic Republic of the Congo before emptying into the Atlantic Ocean.
an equatorial country in Africa, with a short Atlantic coastline; population 4,012,800 (est. 2009); languages, French (official), Kikongo, and other Bantu languages; capital, Brazzaville. Also called Republic of Congo , Congo-Brazzaville.