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Zhupanovsky

(Encyclopedia)Zhupanovsky, compound volcano, 9,705 ft (2,958 m), on the Kamchatka peninsula, Kamchatka Territory, Russia, c.40 mi (65 km) N of Petropavlovsk. Zhupanovsky consists of four stratovolcanoes along a rid...

Martin, Archer John Porter

(Encyclopedia)Martin, Archer John Porter, 1910–2002, English biochemist, educated at Cambridge. From 1938 to 1946 he carried on chemical research in the laboratories of the Wool Industries Association at Leeds, Y...

silicate

(Encyclopedia)silicate, chemical compound containing silicon, oxygen, and one or more metals, e.g., aluminum, barium, beryllium, calcium, iron, magnesium, manganese, potassium, sodium, or zirconium. Silicates may b...

Alexandroúpolis

(Encyclopedia)Alexandroúpolis älĕksändro͞oˈpôlēs [key], city, capital of Evros prefecture, NE Greece, W Thrace, a seaport on the Gulf of Ainos, an inlet of the Aegean Sea. It is...

Mesa, city, United States

(Encyclopedia)Mesa māˈsə [key], city (1990 pop. 288,091), Maricopa co., S central Ariz., in the irrigated Salt River valley; inc. 1883. Electronic components, fabricated metals, aircraft, and machine tools are a...

Young, Mahonri Mackintosh

(Encyclopedia)Young, Mahonri Mackintosh məhŏnˈrē [key], 1877–1957, American sculptor, painter, and etcher, b. Salt Lake City, studied at the Art Students League and at Julian's Academy, Paris; grandson of Bri...

Swakopmund

(Encyclopedia)Swakopmund sfäˈkôpmənt [key], municipality (1991 pop. 17,681), W Namibia, on the Atlantic at mouth of Swakop River. A rail terminus and seaside resort surrounded by the Namib desert, the town was ...

matter

(Encyclopedia)matter, anything that has mass and occupies space. Matter is sometimes called koinomatter (Gr. koinos=common) to distinguish it from antimatter, or matter composed of antiparticles. The atomic th...

smaltite

(Encyclopedia)smaltite smôlˈtīt [key], opaque tin-white to steel-gray mineral of the pyrite group, a compound of cobalt and arsenic. It occurs in massive form, occasionally in crystals (cubes) of the isometric s...

aniline

(Encyclopedia)aniline ănˈəlĭn [key], C6H5NH2, colorless, oily, basic liquid organic compound; chemically, a primary aromatic amine whose molecule is formed by replacing one hydrogen atom of a benzene molecule w...