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metallurgy
(Encyclopedia)metallurgy mĕtˈəlûrˌjē [key], science and technology of metals and their alloys. Modern metallurgical research is concerned with the preparation of radioactive metals, with obtaining metals econ...salt, chemical compound
(Encyclopedia)salt, chemical compound (other than water) formed by a chemical reaction between an acid and a base (see acids and bases). Salts are also prepared by methods other than neutralization. A metal can c...altitude
(Encyclopedia)altitude, vertical distance of an object above some datum plane, such as mean sea level or a reference point on the earth's surface. It is usually measured by the reduction in atmospheric pressure wit...lutetium
(Encyclopedia)lutetium, formerly lutecium both: lo͞otēˈshēəm [key], metallic chemical element; symbol Lu; atomic number 71; at. wt. 174.9668; m.p. about 1,663℃; b.p. about 3,395℃; sp. gr. 9.835 at 25℃; v...amortization
(Encyclopedia)amortization ămˌərtəzāˈshən, əmôrˈ– [key], reduction, liquidation, or satisfaction of a debt. The term amortization may also refer to the sum used for that purpose. The term is commonly us...Dice, in Greek religion and mythology
(Encyclopedia)Dice: see Horae.Dike, in Greek religion and mythology
(Encyclopedia)Dike: see Horae.Dione, in Greek religion and mythology
(Encyclopedia)Dione, in Greek religion and mythology, earth goddess. In some legends she is the daughter of Oceanus and Tethys; in others she is a Titaness, born to Uranus and Gaea. In yet another version she is th...Dvina, river, Russia, Belarus, and Latvia
(Encyclopedia)Dvina or Western Dvina, Ger. Düna, Latvian Daugava, Rus. Zapadnaya Dvina, river, c.635 mi (1,020 km) long, in Russia, Belarus, and Latvia. Rising in the Valdai Hills, it flows S and then generally W ...Detroit, river, United States and Canada
(Encyclopedia)Detroit, river, 32 mi (52 km) long, flowing from Lake St. Clair S into Lake Erie between Detroit, Mich., and Windsor, Ont.; it forms part of the U.S.-Canada boundary. It is one of the most heavily ind...Browse by Subject
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