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Great Plains

(Encyclopedia)Great Plains, extensive grassland region on the continental slope of central North America. They extend from the Canadian provinces of Alberta, Saskatchewan, and Manitoba south through W central Unite...

Mexican War

(Encyclopedia)Mexican War, 1846–48, armed conflict between the United States and Mexico. The United States had won an easy victory, partly because Mexico, torn by civil strife, could not present a united fron...

county

(Encyclopedia)county [Fr., comté,=domain of a count], division of local government in the United States, Great Britain, and many Commonwealth countries. The county developed in England from the shire, a unit of lo...

Cook, Frederick Albert

(Encyclopedia)Cook, Frederick Albert, 1865–1940, American explorer and physician, b. Sullivan co., N.Y. Cook early became interested in the arctic and accompanied the expedition of Robert E. Peary in 1891–92 as...

Clemens, Roger

(Encyclopedia)Clemens, Roger (William Roger Clemens) klĕmˈənz [key], 1962–, American baseball player, b. Dayton, Ohio. Noted for his competitive fire and nicknamed “Roger the Rocket,” Clemens became one of...

Fourier, Charles

(Encyclopedia)Fourier, Charles shärl fo͞oryāˈ [key], 1772–1837, French social philosopher. From a bourgeois family, he condemned existing institutions and evolved a kind of utopian socialism. In Théorie des ...

Hancock, Winfield Scott

(Encyclopedia)Hancock, Winfield Scott, 1824–86, Union general in the American Civil War, b. Montgomery Square, near Norristown, Pa. He served with distinction in the Mexican War and was chief quartermaster on the...

grapefruit

(Encyclopedia)grapefruit, pomelo pumˈməlō [key], citrus fruit (Citrus paradisi) of the family Rutaceae (orange family). The grapefruit is so named because it grows in grapelike bunches. The large globular fruit...

Gates, Robert Michael

(Encyclopedia)Gates, Robert Michael, 1943–, American government official, U.S. secretary of defense (2006–11), b. Wichita, Kans. A circumspect and pragmatic career intelligence officer, he joined (1966) the Cen...

National Radio Astronomy Observatory

(Encyclopedia)National Radio Astronomy Observatory (NRAO), federal observatory for radio astronomy, founded in 1956 and operated under contract with the National Science Foundation by Associated Universities, Inc.,...