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megachurch

(Encyclopedia) megachurch, large Protestant church with an average weekly attendance of 2,000 or more; relatively uncommon until after 1970. In the United States, where most megachurches are located…

baby boom

(Encyclopedia) baby boom, a period in which the birthrate is significantly higher than in other periods, especially the post–World War II period in the United States, Canada, Australia, and New…

compact disc

(Encyclopedia) compact disc (CD), a small plastic disc used for the storage of digital data. As originally developed for audio systems, the sound signal is sampled at a rate of 44,100 times a second…

amphibian, in zoology

(Encyclopedia) amphibian, in zoology, cold-blooded vertebrate animal of the class Amphibia. There are three living orders of amphibians: the frogs and toads (order Anura, or Salientia), the…

gang

(Encyclopedia) gang, group of people organized for a common purpose, often criminal. Gangs of criminals were long known on the American frontier and also flourished in urban settings. Notorious were…

flute

(Encyclopedia) flute, in music, generic term for such wind instruments as the fife, the flageolet, the panpipes, the piccolo, and the recorder. The tone of all flutes is produced by an airstream…

Vesta, in astronomy

(Encyclopedia) VestaVestavĕsˈtə [key], in astronomy, the fourth asteroid to be discovered. It was found in 1807 by H. Olbers. It is the third largest asteroid in size, with a diameter of c.326 mi (…

Xi'an

(Encyclopedia) Xi'anXi'anshēˈänˈ [key] or SianXi'anshēˈänˈ, sēˈ– [key], city (1994 est. pop. 2,114,900), capital of Shaanxi prov., China, in the Wei River valley. Situated on the Longhai RR, China's…

Biafra, Republic of

(Encyclopedia) Biafra, Republic of, secessionist state of W Africa, in existence from May 30, 1967, to Jan. 15, 1970. At the outset Biafra comprised, roughly, the East-Central, South-Eastern, and…

vivisection

(Encyclopedia) vivisectionvivisectionvĭvˌĭsĕkˈshən [key], dissection of living animals for experimental purposes. The use of the term in recent years has been expanded to include all experimentation…