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Washita

(Encyclopedia)Washita wŏshˈĭtô [key], river, c.450 mi (720 km) long, rising in the Texas Panhandle near the Okla. line and flowing generally SE across Oklahoma to Lake Texoma or the Red River. The Native Americ...

Yankton, city, United States

(Encyclopedia)Yankton, city (1990 pop. 12,703), seat of Yankton co., extreme SE S.Dak., on the Missouri River; inc. 1869. A railroad and trade center in an agricultural region, it has grain elevators, creameries, a...

Schober, Johann

(Encyclopedia)Schober, Johann yōˈhän shōˈbər [key], 1874–1932, Austrian chancellor (1921–22, 1929–30). A respected career civil servant, he held the key post of head of the Vienna police after July, 191...

clone

(Encyclopedia)clone, group of organisms, all of which are descended from a single individual through asexual reproduction, as in a pure cell culture of bacteria. Except for changes in the hereditary material that c...

pharming

(Encyclopedia)pharming färˈmĭng [key], the use of genetically altered livestock, such as cows, goats, pigs, and chickens, to produce medically useful products. In pharming, researchers first create hybrid genes ...

ethnology

(Encyclopedia)ethnology ĕthnŏlˈəjē [key], scientific study of the origin and functioning of human cultures. It is usually considered one of the major branches of cultural anthropology, the other two being anth...

Nilsson, Lennart

(Encyclopedia)Nilsson, Lennart lĕnˈnärt nĭlˈsôn [key], 1922–2017, Swedish photographer who made pioneering microphotographs of embryos and the human body. Nilsson began his career as a photojournalist, chro...

Lagerkvist, Pär Fabian

(Encyclopedia)Lagerkvist, Pär Fabian pâr fäˈbēän läˈgərkvĭst [key], 1891–1974, Swedish poet, dramatist, and novelist. Lagerkvist is considered one of the most significant figures of modern Swedish liter...

Vesalius, Andreas

(Encyclopedia)Vesalius, Andreas vĭsāˈlēəs [key], 1514–64, Flemish anatomist. He made many discoveries in anatomy and became noted as professor of anatomy at the Univ. of Padua. There he produced his chief wo...

ulcer

(Encyclopedia)ulcer, open sore or circumscribed erosion, usually slow to heal, on the skin or mucous membranes. It may develop as a result of injury; because of a circulatory disturbance, e.g., in varicose veins or...