Kordofan, a country of E. Africa, subject to the khedive of Egypt, lying between lat. 12° 30' and 15° 30' N., and lon. 29° and 32° E., bounded N. by Nubia and S. by the Deir mountains, and separated by strips of mostly desert land from the White Nile on the E. and Darfoor on the W.; pop. estimated at 400,000. The surface is in general level, but in the southwest and extreme north it is rather mountainous. There are no permanent rivers, but several small lakes exist in different parts of the country. The climate is very unhealthy in the rainy season, and in the dry intolerably hot; hurricanes are frequent. The soil is naturally fertile. In the wet season the earth is covered with a luxuriant vegetation, but during the drought everything is burned up. The population consists of negroes, Arabs, and emigrants from Dongola. This country was for a long period tributary to the empire of Sennaar; it was taken in the latter half of the 18th century by the king of Darfoor, and was conquered by Mehemet Ali about 1820, who was confirmed in the possession of it by a firman issued by the sultan, Feb. 13, 1841. Slavery was abolished there in 1857. Capital, Obeid, or El Obeid.