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Abu Ghraib

(Encyclopedia)Abu Ghraib or Abu Ghurayb äˈbo͞o grĕb [key], infamous prison located in the town of Abu Ghraib, c.20 mi (32 km) W of Baghdad, Iraq. Built by British contractors in the 1960s, it occupies c.280 acr...

chemical bond

(Encyclopedia)chemical bond, mechanism whereby atoms combine to form molecules. There is a chemical bond between two atoms or groups of atoms when the forces acting between them are strong enough to lead to the for...

Freud, Sigmund

(Encyclopedia)Freud, Sigmund froid [key], 1856–1939, Austrian psychiatrist, founder of psychoanalysis. Born in Moravia, he lived most of his life in Vienna, receiving his medical degree from the Univ. of Vienna i...

ammonia

(Encyclopedia)ammonia, chemical compound, NH3, colorless gas that is about one half as dense as air at ordinary temperatures and pressures. It has a characteristic pungent, penetrating odor. Ammonia forms a minute ...

Dreyfus Affair

(Encyclopedia)Dreyfus Affair drāˈfəs, drī– [key], the controversy that occurred with the treason conviction (1894) of Capt. Alfred Dreyfus (1859–1935), a French artillery officer and graduate of the French ...

poet laureate

(Encyclopedia)poet laureate lôˈrēĭt [key], title conferred in Britain by the monarch on a poet whose duty it is to write commemorative odes and verse. It is an outgrowth of the medieval English custom of having...

South African literature

(Encyclopedia)South African literature, literary works written in South Africa or written by South Africans living in other countries. Populated by diverse ethnic and language groups, South Africa has a distinctive...

Chaucer, Geoffrey

(Encyclopedia)Chaucer, Geoffrey jĕfˈrē chôˈsər [key], c.1340–1400, English poet, one of the most important figures in English literature. To Chaucer's final period, in which he achieved his fullest artist...

mining

(Encyclopedia)mining, extraction of solid mineral resources from the earth. These resources include ores, which contain commercially valuable amounts of metals, such as iron and aluminum; precious stones, such as d...

Orléans, French royal family

(Encyclopedia)Orléans ôrlāäNˈ [key], family name of two branches of the French royal line. The house of Valois-Orléans was founded by Louis, duc d'Orléans (see separate article), whose assassination (1407) c...