Definitions:
a major river of central africa, which rises as the river lualaba to the south of kisangani in northern democratic republic of congo (zaire) and flows 4,630 km (2,880 miles) in a great curve westwards, turning south-westwards to form the border with the congo before emptying into the atlantic.

an equatorial country in africa, with a short atlantic coastline; population 6,800,000 (estimated 2015); languages, french (official), kikongo, and other bantu languages; capital, brazzaville. also called republic of congo, congo-brazzaville.