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MacDiarmid, Alan Graham

(Encyclopedia)MacDiarmid, Alan Graham, 1927–2007, American chemist, b. Masterton, New Zealand, Ph.D. Univ. of Wisconsin, Madison, 1953, Ph.D. Cambridge, 1955. MacDiarmid was on the faculty at the Univ. of Pennsyl...

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...

Kielce

(Encyclopedia)Kielce kyĕlˈtsĕ [key], city (1993 est. pop. 215,300), capital of Świętokrzyskie prov., S central Poland. It is a railway junction and manufacturing center where metals, machinery, and foodstuffs ...

Bassano del Grappa

(Encyclopedia)Bassano del Grappa bäs-säˈnō dĕl gräpˈpä [key], city, Venetia, NE Italy, on t...

silicon carbide

(Encyclopedia)silicon carbide, chemical compound, SiC, that forms extremely hard, dark, iridescent crystals that are insoluble in water and other common solvents. Widely used as an abrasive, it is marketed under su...

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...

carbon tetrachloride

(Encyclopedia)carbon tetrachloride tĕˌtrəklôrˌəmĕthˈān [key], CCl4, colorless, poisonous, liquid organic compound that boils at 76.8℃. It is toxic when absorbed through the skin or when inhaled. It react...

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...

skin cancer

(Encyclopedia)skin cancer, malignant tumor of the skin. The most common types of skin cancer are basal cell carcinoma, squamous cell carcinoma, and melanoma. Rarer forms include mycosis fungoides (a type of lymphom...