Congo, Democratic Republic of the, formerly Zaïre , republic (1995 est. pop. 44,061,000), c.905,000 sq mi (2,344,000 sq km), central Africa. It borders on Angola in the southwest and west, on Cabinda and the Republic of the Congo in the west, on the Central African Republic and Sudan in the north, on Uganda, Rwanda, Burundi, and Tanzania in the east, and on Zambia in the southeast.kinshasa is its capital and largest city.Modern Kinshasa is an educational and cultural center and is the seat of Lovanium Univ. of Kinshasa (1954), which has an archaeological museum, the National School of Law and Administration, a telecommunications school, a research center for tropical medicine, and a museum of Africana. Historical buildings in the city include the chapel of the American Baptist Missionary Society (1891) and a Roman Catholic cathedral (1914). There is a large stadium (seating capacity about 70,000).