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Youngstown
(Encyclopedia)Youngstown, city (1990 pop. 95,732), seat of Mahoning co., NE Ohio, near the Pa. line; founded 1797, inc. 1849. It was formerly a major U.S. iron and steel center. In the 1970s many of the steel mills...castor oil
(Encyclopedia)castor oil, yellowish oil obtained from the seed of the castor bean. The oil content of the seeds varies from about 20% to 50%. After the hulls are removed the seeds are cold-pressed. Medicinal castor...Nashua
(Encyclopedia)Nashua năshˈo͞oə [key], city (1990 pop. 79,662), seat of Hillsborough co., S N.H., on the Merrimack and Nashua rivers near the Mass. line; settled c.1655, inc. as a city 1853. Because of the avail...Newburgh
(Encyclopedia)Newburgh no͞oˈbərg, nyo͞oˈ– [key], city (1990 pop. 26,454), Orange co., SE N.Y., on the west bank of the Hudson River, opposite Beacon; settled 1709 by Palatine Germans, inc. 1800. The city has...intaglio
(Encyclopedia)intaglio ĭntălˈyō, –tälˈ– [key], design cut into stone or other material or etched or engraved in a metal plate, producing a concave, instead of a convex, effect. It is the reverse of a reli...dominoes
(Encyclopedia)dominoes, game played with a set of rectangular pieces (usually 28 in number) called dominoes. Each piece (made of wood, bone, ivory, plastic, or other material) has one blank face and one face marked...Roseville
(Encyclopedia)Roseville. 1 City (1990 pop. 44,685), Placer co., N central Calif., a suburb of Sacramento in the foothills of the Sierra; inc. 1909. Marked by rapid growth in the late 20th cent., Roseville is in an ...silo
(Encyclopedia)silo, watertight and airtight structure for making and storing silage. Silos vary in form from a covered pit, such as was used by the early Romans, to the modern storage tower, dating from the 19th ce...vinyl plastics
(Encyclopedia)vinyl plastics, group of thermoplastics used in molded products, flexible tubing, material for raincoats, and laminated safety glass. Vinyl plastics are polymers and copolymers of vinyl derivatives (i...fire clay
(Encyclopedia)fire clay, clay that has a high degree of resistance to heat. By the best standards it should have a fusion point higher than 1,600℃. The term “fire clay” is commonly held to exclude kaolin and ...Browse by Subject
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