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Environmental Protection Agency

(Encyclopedia) Environmental Protection Agency (EPA), independent agency of the U.S. government, with headquarters in Washington, D.C. It was established in 1970 to reduce and control air and water…

International Civil Aviation Organization

(Encyclopedia) International Civil Aviation Organization (ICAO), specialized agency of the United Nations, organized in 1947, with headquarters at Montreal. The objective of the ICAO, which has 190…

air traffic control

(Encyclopedia) air traffic control, the system by which airplanes are safely routed into and out of major airports. Air traffic control in the United States is centered in a number of regional…

Ghose, Chinmoy

(Encyclopedia) Ghose, ChinmoyGhose, Chinmoygōs [key]Ghose, Chinmoy gōsh [key], 1931–, Indian mystic and poet. Orphaned at the age of 12, he went to live at the Sri Aurobindo Ashram in S India, where…

Bikini

(Encyclopedia) BikiniBikinibēkēˈnē [key], atoll, c.2 sq mi (5.2 sq km), W central Pacific, one of the Ralik Chain, Marshall Islands. It comprises 36 islets on a reef 25 mi (40 km) long. After its…

thalidomide

(Encyclopedia) thalidomidethalidomidethəlĭdˈəmĭdˌ [key], sleep-inducing drug found to produce skeletal defects in developing fetuses. The drug was marketed in Europe, especially in West Germany and…

calumet, peace pipe

(Encyclopedia) calumet [Fr.,=reed], name given by the French to the peace pipe used by the indigenous people of North America for smoking tobacco; it consisted of a long, feathered stem, with or…

CAT scan

(Encyclopedia) CAT scanCAT scankăt [key] [computerized axial tomography], X-ray technique that allows relatively safe, painless, and rapid diagnosis in previously inaccessible areas of the body; also…

Imperial Valley

(Encyclopedia) Imperial Valley, fertile region in the Colorado Desert, SE Calif., extending S into NW Mexico. Once part of the Gulf of California, most of the region is below sea level; its lowest…