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Black River

(Encyclopedia)Black River. 1 River rising in SE Mo. and flowing c.300 mi (480 km) SE, then SW to the White River near Newport, Ark. It is partly navigable. Clearwater Dam is on the river near Piedmont, Mo. 2 River ...

Trinidad and Tobago

(Encyclopedia)CE5 Trinidad and Tobago trĭnˈĭdăd, təbāˈgō [key], officially Republic of Trinidad and Tobago, republic (2015 est. pop. 1,222,000), 1,980 sq mi (5,129 sq km), West Indies. The capital is Por...

Moncton

(Encyclopedia)Moncton mŭngkˈtən [key], city (1991 pop. 57,010), SE N.B., Canada, on the Petitcodiac River. Although its rail repair yards were closed in 1988, it is an air and rail transportation center and a ro...

Mattei, Enrico

(Encyclopedia)Mattei, Enrico ānrēˈkō mät-tāˈ [key], 1906–62, Italian public administrator. After World War II he was given the task of dismantling the Italian Petroleum Agency, a Fascist state enterprise. ...

rare earths

(Encyclopedia)rare earths, in chemistry, oxides of the rare-earth metals. They were once thought to be elements themselves. They are widely distributed in the earth's crust and are fairly abundant, although they we...

Ventura

(Encyclopedia)Ventura vĕnto͞oˈrə [key], city (1990 pop. 92,575), seat of Ventura co., SW Calif., on the Pacific coast in a farm and oil region; inc. 1866. Fruit and vegetable packing, petroleum production, oil ...

Qom

(Encyclopedia)Qom kôm [key], city (1991 pop. 681,253), Tehran prov., W central Iran. Located in a semiarid region, it is an industrial and transportation center. Its manufactures include textiles, glass, pottery, ...

emetic

(Encyclopedia)emetic əmĕtˈĭk [key], substance that produces vomiting. Direct, or gastric, emetics, which act directly on the stomach, include syrup of ipecac, sulfate of zinc or copper, alum, ammonium carbonate...

King of Prussia

(Encyclopedia)King of Prussia, industrialized suburban area (1990 pop. 18,406), Montgomery co., SE Pa. It has glass and steel fabricating, food processing, printing and publishing, and varied manufacturing (textile...

Norristown

(Encyclopedia)Norristown, borough (1990 pop. 30,749), seat of Montgomery co., SE Pa., on the Schuylkill River; settled c.1712, laid out 1784, inc. 1812. Among its manufactures are textiles, medical equipment, machi...