Columbia Encyclopedia

Search results

500 results found

hallucination

(Encyclopedia)hallucination, false perception characterized by a distortion of real sensory stimuli. Common types of hallucination are auditory, i.e., hearing voices or noises and visual, i.e., seeing people that a...

Hailemariam Desalegn

(Encyclopedia)Hailemariam Desalegn, 1965–, Ethiopian political leader. Trained as an engineer, Hailemariam held various positions at Arba Minch Univ. (1989–2000). A member of Southern Ethiopian People's Democra...

Riel, Louis

(Encyclopedia)Riel, Louis lwē rēĕlˈ [key], 1844–85, Canadian insurgent, leader of two rebellions, b. Manitoba, of French and Métis parentage. In 1869–70 he led the rebels of the Red River settlements, main...

orphan drug

(Encyclopedia)orphan drug, drug developed under the U.S. Orphan Drug Act (1983) to treat a disease that affects fewer than 200,000 people in the United States. The orphan drug law offers tax breaks and a seven-year...

epidemiology

(Encyclopedia)epidemiology, field of medicine concerned with the study of epidemics, outbreaks of disease that affect large numbers of people. Epidemiologists, using sophisticated statistical analyses, field invest...

Colleyville

(Encyclopedia) Colleyville, city (2020 pop. 26,057), Tarrant co., NE Tex.; inc. 1956. A residential suburb located between Dallas and Fort Worth, the area was origina...

Abiy Ahmed Ali

(Encyclopedia)Abiy Ahmed Ali, 1976–, Ethiopian political leader. Joining the Ethiopian army in 1993, he served in the intelligence service, the UN peacekeeping mission in Rwanda, and the border ...

Bulgars, Eastern

(Encyclopedia)Bulgars, Eastern bŭlˈgärz, –gərz [key], Turkic-speaking people, who possessed a powerful state (10th–14th cent.) at the confluence of the Volga and the Kama, E European Russia. The Bulgars app...

Lud

(Encyclopedia)Lud, in the Bible, eponym of an Asian people, probably the Lydians. There is probably textual confusion at some points with the Lubim. ...

Navaho

(Encyclopedia)Navaho: see Navajo, people; Navajo, language. ...
 

Browse by Subject