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Klug, Sir Aaron

(Encyclopedia)Klug, Sir Aaron klo͞og [key], 1926–2018, British biochemist, b. Lithuania. Raised and educated in South Africa, he moved to England and completed his doctorate at Trinity College, Cambridge, in 195...

Koch, Robert

(Encyclopedia)Koch, Robert rōˈbĕrt kôkh [key], 1843–1910, German bacteriologist. He studied at Göttingen under Jacob Henle. As a country practitioner in Wollstein, Posen (now Wolsztyn, Poland), he devoted mu...

Tutsi

(Encyclopedia)Tutsi wä– [key], cattle-raising people of central Africa, particularly in Burundi and Rwanda; they are also known as Watusi or Batusi. The original Tutsi homeland was probably in Ethiopia, and c.40...

Savimbi, Jonas

(Encyclopedia)Savimbi, Jonas sävĭmˈbē [key], 1934–2002, Angolan rebel leader. He was a founding member of the National Union for the Total Independence of Angola (UNITA) in 1966. Savimbi was included in the i...

Sahel

(Encyclopedia)Sahel sähĕlˈ [key], name applied to the semiarid region of Africa between the Sahara to the north and the savannas to the south, extending from Senegal and Mauritania on the west, through Mali, N B...

cape buffalo

(Encyclopedia)cape buffalo, species of short-haired African ungulate, or hoofed mammal, Syncerus caffer. The cape, or African, buffalo may reach 7 ft (2.1 m) in length, weigh more than 1,500 lb (670 kg), and reach ...

quagga

(Encyclopedia)quagga kwăgˈə [key], extinct type of zebra. It formerly inhabited open plains in S Africa, where its range overlapped that of the plains zebra, or common zebra (Equus quagga, formerly E. burchellii...

pitchblende

(Encyclopedia)pitchblende pĭchˈblĕndˌ [key], dark, lustrous, heavy mineral, a source of radium and uranium. Largely natural uranium oxides, triuranium octaoxide (U3O8) and uranium dioxide (UO2), it usually cont...

tropical medicine

(Encyclopedia)tropical medicine, study, diagnosis, treatment, and prevention of certain diseases prevalent in the tropics. The warmth and humidity of the tropics and the often unsanitary conditions under which so m...

oryx

(Encyclopedia)oryx ôrˈĭks [key], name for several small, horselike antelopes, genus Oryx, found in deserts and arid scrublands of Africa and Arabia. They feed on grasses and scrub and can go without water for lo...