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combustion
(Encyclopedia)combustion, rapid chemical reaction of two or more substances with a characteristic liberation of heat and light; it is commonly called burning. The burning of a fuel (e.g., wood, coal, oil, or natura...indium
(Encyclopedia)indium ĭnˈdēəm [key], a metallic chemical element; symbol In; at. no. 49; at. wt. 114.818; m.p. 156.6℃; b.p. about 2,080℃; sp. gr. 7.31 at 20℃; valence +1, +2, or +3. Indium is a soft, malle...executive
(Encyclopedia)executive, one who carries out the will or plan of another person or of a group. In government, the term refers not only to the chief administrative officer but to all others who execute the laws and ...bismuth
(Encyclopedia)bismuth bĭzˈməth [key] [Ger. Weisse Masse=white mass], metallic chemical element; symbol Bi; at. no. 83; at. wt. 208.98040; m.p. 271.3℃; b.p. about 1,560℃; sp. gr. 9.75 at 20℃; valence +3 or ...coal
(Encyclopedia)coal, fuel substance of plant origin, largely or almost entirely composed of carbon with varying amounts of mineral matter. Coal is found in beds or seams interstratified with shales, clays, sands...Edinburgh
(Encyclopedia)Edinburgh ĕdˈĭnbərə [key], city (2021 pop. 542,599) and council area, royal burgh, capital of ...Kennedy, Ted
(Encyclopedia)Kennedy, Ted (Edward Moore Kennedy), 1932–2009, U.S. senator from Massachusetts (1962–2009), b. Boston, Mass., youngest son of Joseph P. Kennedy and the last survivor of brothers Joseph P. Kennedy...cerium
(Encyclopedia)cerium sērˈēəm [key] [from the asteroid Ceres], metallic chemical element; symbol Ce; at. no. 58; at. wt. 140.116; m.p. 799℃; b.p. 3,426℃; sp. gr. 6.77 at 25℃; valence +3 or +4. Cerium is a ...shock
(Encyclopedia)shock, any condition in which the circulatory system is unable to provide adequate circulation to the body tissues, also called circulatory failure or circulatory collapse. Shock results in the slowin...Browse by Subject
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