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arsenopyrite

(Encyclopedia)arsenopyrite mĭsˈpĭkəl [key], silver-white to steel-gray mineral with the metallic luster characteristic of a pyrite. It is a sulfarsenide of iron, FeAsS, crystallizing in the orthorhombic system ...

Maybeck, Bernard

(Encyclopedia)Maybeck, Bernard, 1862–1957, American architect, b. New York City. After studying at the École des Beaux-Arts, Paris, he became one of the leading architects in California. From the 1890s to the 19...

Maranhão

(Encyclopedia)Maranhão mərənyouNˈ [key], state (1996 pop. 5,218,442), 126,897 sq mi (328,663 sq km), NE Brazil, on the Atlantic Ocean. The capital is São Luís (also known as Maranhão). Agriculture and livest...

Kamyanske

(Encyclopedia)Kamyanske, formerly Dniprodzerzhynsk dənyĭpˌrōdzĭrzhēnskˈ [key], Rus. Dneprodzerzhinsk, city (1989 pop. 282,000), central Ukraine, a port on the Dnieper River. It is a major industrial center w...

Guillaume, Charles Édouard

(Encyclopedia)Guillaume, Charles Édouard shärl ādwärˈ gēyōmˈ [key], 1861–1938, Swiss physicist and metrologist, Ph.D. Zürich Polytechnic (now the Federal Institute of Technology), 1882. Guillaume joined ...

Gijón

(Encyclopedia)Gijón hēhōnˈ [key], city, Oviedo prov., N Spain, in Asturias, on the Bay of Biscay. This ...

Ithaca, city, United States

(Encyclopedia)Ithaca ĭthˈəkə [key], city (2020 pop. 32,108), seat of Tompkins co., S central N.Y., at t...

cofferdam

(Encyclopedia)cofferdam, temporary barrier for excluding water from an area that is normally submerged. Made commonly of wood, steel, or concrete sheet piling (see pile), cofferdams are used in constructing the fou...

Clonmel

(Encyclopedia)Clonmel klŏnmĕlˈ [key], town, administrative center of South Riding, Co. Tipperary, S Repu...

Phoenixville

(Encyclopedia)Phoenixville fēˈnĭksvĭl [key], borough (1990 pop. 15,066), Chester co., SE Pa., on the Schuylkill River; settled 1720, inc. 1849. Iron deposits in the region led to the early development of an iro...