Columbia Encyclopedia

Search results

500 results found

myasthenia gravis

(Encyclopedia)myasthenia gravis mīəsthēˈnēə gräˈvĭs [key], chronic disorder of the muscles characterized by weakness and a tendency to tire easily. It is caused by an autoimmune attack on the acetylcholine...

Mnuchin, Steven Terner

(Encyclopedia)Mnuchin, Steven Terner məno͞ochən [key], 1962–, U.S. business leader, b. New York City, grad. Yale, 1985. An investment banker, he joined Goldman Sachs in 1985, becoming a partner in 1994 and exe...

Kerch Strait

(Encyclopedia)Kerch Strait, shallow channel, c.25 mi (40 km) long, connecting the Sea of Azov with the Black Sea and separating Crimea in the west from Russia's Taman Peninsula in the east. Its northern end, openin...

Roca, Julio Argentino

(Encyclopedia)Roca, Julio Argentino ho͞oˈlyō ärhāntēˈnō rōˈkä [key], 1843–1914, general who became president of Argentina (1880–86, 1898–1904). Minister of war under Nicolas Avellaneda, he crushed ...

Suárez González, Adolfo

(Encyclopedia)Suárez González, Adolfo ädôlˈfō swäˈrāth gōnthäˈlĕth [key], 1932–2014, Spanish lawyer and political leader. Because he had worked in the Nationalist Movement (the Falange) for 18 years ...

San Juan Boundary Dispute

(Encyclopedia)San Juan Boundary Dispute, controversy between the United States and Great Britain over the U.S.–British Columbia boundary. It is sometimes called the Northwest Boundary Dispute. The difficulty aros...

cheetah

(Encyclopedia)cheetah chēˈtə [key], carnivore of the cat family, Acinonyx jubatus, native to Africa and SW Asia as far east as India. Formerly numerous all over their range, they are extinct now in Asia except f...

Achaemenids

(Encyclopedia)Achaemenids ăkˌəmĕnˈĭdz [key], dynasty of ancient Persia. They were descended presumably from one Achaemenes, a minor ruler in a mountainous district of SW Iran. His successors, when Elam declin...

Weinberger, Caspar Willard

(Encyclopedia)Weinberger, Caspar Willard wīnˈbûrgər [key], 1917–2006, U.S. government official, U.S. secretary of defense (1981–87), b. San Francisco, grad. Harvard (1938), Harvard Law School (1941). After ...

Organization of Petroleum Exporting Countries

(Encyclopedia)Organization of Petroleum Exporting Countries (OPEC), multinational organization (est. 1960, formally constituted 1961) that coordinates petroleum policies and economic aid among oil-producing nations...