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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...

León, region and former kingdom, Spain

(Encyclopedia)León lā-ōnˈ [key], historic region and former kingdom, NW Spain, E of Portugal and Galicia, now part of Castile–León. It includes the provinces of León, Salamanca, and Zamora, named after thei...

Labor-Management Reporting and Disclosure Act

(Encyclopedia)Labor-Management Reporting and Disclosure Act: see Landrum-Griffin Act. ...

Lake Clark National Park and Preserve

(Encyclopedia)Lake Clark National Park and Preserve, S Alaska. Located across Cook Inlet from Anchorage, the park (2,619,733 acres/1,060,621 hectares) and adjacent preserve (1,410,325 acres/570,982 hectares) featur...

Métis, in Canadian history and society

(Encyclopedia)Métis [Fr.,=mixed], person of mixed racial heritage, particularly a descendant of French and English fur traders and indigenous women, principally in the Canadian prairie provinces of Alberta, Manito...

Milan, prince and king of Serbia

(Encyclopedia)Milan (Milan Obrenović) mĭlˈän ōbrĕˈnəvĭch [key], 1854–1901, prince (1868–82) and king (1882–89) of Serbia; grandnephew of Miloš Obrenović. He succeeded his cousin Michael Obrenović ...