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geography

(Encyclopedia)geography, the science of place, i.e., the study of the surface of the earth, the location and distribution of its physical and cultural features, the areal patterns or places that they form, and the ...

Arizona

(Encyclopedia)CE5 Arizona ârˌəzōˈnə [key], state in the SW United States. It is bordered by Utah (N), New Mexico (E), Mexico (S), and, largely across the Colorado River, Nevada and California (W); it touch...

transplantation, medical

(Encyclopedia)transplantation, medical, surgical procedure by which a tissue or organ is removed and replaced by a corresponding part, usually from another part of the body or from another individual. A life-saving...

American architecture

(Encyclopedia)American architecture, the architecture produced in the geographical area that now constitutes the United States. Wright, generally acknowledged as one of the greatest architects of the 20th cent., ...

rock music

(Encyclopedia)rock music, type of music originating in the United States in the mid-1950s and increasingly popular throughout much of the world. A turning point in rock music occurred in the mid-1970s in the ...

Civil War, in U.S. history

(Encyclopedia)Civil War, in U.S. history, conflict (1861–65) between the Northern states (the Union) and the Southern states that seceded from the Union and formed the Confederacy. It is generally known in the So...

Antarctica

(Encyclopedia)CE5 Antarctica ăntärkˈtĭkə, –ärˈtĭkə [key], the fifth largest continent, c.5,500,000 sq mi (14,245,000 sq km), asymmetrically centered on the South Pole and almost entirely within the An...

Republican party

(Encyclopedia)Republican party, American political party. In 1980, the conservative Ronald Reagan, a former supporter of Barry Goldwater, regained the presidency for the Republicans and reversed long-standi...

Los Angeles

(Encyclopedia)Los Angeles lôs ănˈjələs, lŏs, ănˈjəlēzˌ [key], city (1990 pop. 3,485,398), seat of Los Angeles co., S Calif.; inc. 1850. A port of entry on the Pacific coast, with a fine harbor at San Ped...

dog

(Encyclopedia)CE5 General anatomy of a dog dog, carnivorous, domesticated wolf (Canis lupus familiaris) of the family Canidae, to which the jackal, fox, and tanuki also belong. The family Canidae is sometimes r...