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leaching

(Encyclopedia)leaching, method of extraction in which a solvent is passed through a mixture to remove some desired substance from it. A simple example is the passage of boiling water through ground coffee to dissol...

Rueil-Malmaison

(Encyclopedia)Rueil-Malmaison rüĕˈyə-mälmāzôNˈ [key], town (1990 pop. 67,323), Hauts-de-Seine dept., N central France. It is an industrial center where metals, armaments, photographic equipment, film, pharm...

Alès

(Encyclopedia)Alès älāˈ, älĕsˈ [key], city, Gard dept., S France, in Languedoc, at the foot of the Cévennes Mts., on the Gardon River. Once noted for cloth and silk, its industr...

Gdynia

(Encyclopedia)Gdynia gədĭnˈyə [key], Ger. Gdingen, city (1994 est. pop. 252,100), Pomorskie prov., N Poland, a port on the Baltic Sea and the Gulf of Danzig. It is the port of a larger urban area that includes ...

alizarin

(Encyclopedia)alizarin əlĭzˈərĭn [key], or 1,2-dihydroxyanthraquinone, mordant vegetable dye obtained originally from the root of the madder plant (Rubia tinctorum), in which it occurs as a glucoside. The term...

Ewing, Sir James Alfred

(Encyclopedia)Ewing, Sir James Alfred yo͞oˈĭng [key], 1855–1935, Scottish engineer and physicist. As professor at Tokyo (1878–83), Dundee (1883–90), and Cambridge (1890–1903), he helped establish program...

Englewood

(Encyclopedia)Englewood ĕngˈgəlwo͝od [key]. 1 City (2020 pop. 33,659), Arapahoe co., N central Colo., o...

Everett

(Encyclopedia)Everett. 1 City (2020 pop. 49,075), Middlesex co., E Mass., an industrial suburb of Boston, on the Mystic River; settled c.1643, set off ...

Pontiac, city, United States

(Encyclopedia)Pontiac, industrial city (1990 pop. 71,166), seat of Oakland co., SE Mich., on the Clinton River; founded 1818 by promoters from Detroit, inc. as a city 1861. Industries developed early and expanded a...

Opole

(Encyclopedia)Opole ôpôˈlĕ [key], Ger. Oppeln, city (1992 est. pop. 129,000), capital of Opolskie prov., S Poland, on the Oder River. A river port and rail junction, it is also an important trade center, with m...