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European Union

(Encyclopedia)European Union (EU), name given since the ratification (Nov., 1993) of the Treaty of European Union, or Maastricht Treaty, to the European Community (EC), an economic and political confederation of Eu...

Rotary International

(Encyclopedia)Rotary International, organization of business and professional people, founded (1905) by Paul Percy Harris, a Chicago lawyer. Beginning with one club in Chicago, it spread to other cities, and in 191...

ash, in chemistry

(Encyclopedia)ash, in chemistry, solid residue of combustion. The chemical composition of an ash depends on that of the substance burned. Wood ash contains metal carbonates (e.g., potassium carbonate) and oxides fo...

suspension, in chemistry

(Encyclopedia)suspension, in chemistry, mixture of two substances, one of which is finely divided and dispersed in the other. Common suspensions include sand in water, fine soot or dust in air, and droplets of oil ...

Bank for International Settlements

(Encyclopedia)Bank for International Settlements (BIS), international financial institution est. (1930) in Basel, Switzerland, by bankers and diplomats from Europe, the United States, and Japan. It was originally s...

union shop

(Encyclopedia)union shop: see closed shop and open shop. ...

sublimation, in chemistry

(Encyclopedia)sublimation sŭblĭmāˈshən [key], change of a solid substance directly to a vapor without first passing through the liquid state. The term is also used to describe the reverse process of the gas ch...

Unión, La

(Encyclopedia)Unión, La, town (1990 pop. 15,144), Murcia prov., SE Spain. It is a center for the rich lead, silver, iron, manganese, and zinc mines of the vicinity, which have been worked since Carthaginian times....

international language

(Encyclopedia)international language, sometimes called universal language, a language intended to be used by people of different linguistic backgrounds to facilitate communication among them and to reduce the misun...

dispersion, in chemistry

(Encyclopedia)dispersion, in chemistry, mixture in which fine particles of one substance are scattered throughout another substance. A dispersion is classed as a suspension, colloid, or solution. Generally, the par...