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El Niño–Southern Oscillation

(Encyclopedia)El Niño–Southern Oscillation (ENSO) ĕl nēnˈyō [key], large-scale climatic fluctuation of the tropical Pacific Ocean and the overlying atmosphere. The El Niño [Span.,=the child] is the South Am...

Gdańsk

(Encyclopedia)Gdańsk dănˈsĭg [key], city (1993 est. pop. 466,700), capital of Pomorskie prov., N Poland, on a branch of the Vistula and on the Gulf of Gdańsk. One of the chief Polish ports on the Baltic Sea, i...

Arabian music

(Encyclopedia)Arabian music, classical musical tradition of the Islamic peoples of Arabia, the Fertile Crescent, and North Africa. Little is known of Arabian music before the Hegira (a.d. 622), but afterward unde...

Ba'ath party

(Encyclopedia)Ba'ath party bäˈäth [key], Arab political party, in Syria and in Iraq. Founded in Damascus in 1941 with an ideology of secularism, socialism, and pan-Arab unionism, it was reformed with the name Ba...

caste

(Encyclopedia)caste [Port., casta=basket], ranked groups based on heredity within rigid systems of social stratification, especially those that constitute Hindu India. Some scholars, in fact, deny that true caste s...

Warsaw

(Encyclopedia)Warsaw wôrˈsô [key], Pol. Warszawa, city (1993 est. pop. 1,655,700), capital of Poland and of Mazowieckie prov., central Poland, on both banks of the Vistula River. It is a political, cultural, and...

social work

(Encyclopedia)social work, organized effort to help individuals and families to adjust themselves to the community, as well as to adapt the community to the needs of such persons and families. Social work emerge...

Rosas, Juan Manuel de

(Encyclopedia)Rosas, Juan Manuel de hwän mänwĕlˈ dā rôˈsäs [key], 1793–1877, Argentine dictator, governor of Buenos Aires prov. (1829–32, 1835–52). As a boy he served under Jacques de Liniers against ...

quantum theory

(Encyclopedia)quantum theory, modern physical theory concerned with the emission and absorption of energy by matter and with the motion of material particles; the quantum theory and the theory of relativity togethe...

ecumenical movement

(Encyclopedia)ecumenical movement ĕkˌyo͞omĕnˈĭkəl, ĕkˌyə– [key], name given to the movement aimed at the unification of the Protestant churches of the world and ultimately of all Christians. During and ...