(Encyclopedia) silicosissilicosissĭlĭkōˈsĭs [key], occupational disease of the lungs caused by inhalation of free silica (quartz) dust over a prolonged period of time. Free silica is dispersed in the…
(Encyclopedia) Saint Lawrence, Gulf of, arm of the Atlantic Ocean, c.100,000 sq mi (259,000 sq km), SE Canada, extending c.250 mi (400 km) from the mouth of the Saint Lawrence River to Newfoundland…
(Encyclopedia) radiation weapon or radiological weapon, a bomb or warhead that uses conventional chemical explosives to disperse radioactive material, sometimes called a “dirty bomb.” Designed to…
(Encyclopedia) nielloniellonēĕlˈō [key] [Ital. from Latin nigellus=blackish], black metallic alloy of sulfur, copper, silver, and usually lead, used as an inlay on engraved metal. The metal surface…
(Encyclopedia) Paneth, Friedrich AdolfPaneth, Friedrich Adolffrēˈdrĭkh äˈdôlf päˈnĕt [key], 1887–1958, Austrian chemist. He was educated at Vienna, Munich, and Glasgow. He held a number of teaching…
(Encyclopedia) Backus, John Warner, 1924–2007, American computer scientist, b. Philadelphia, grad. Columbia (M.A. 1950). Trained as a mathematician, he was hired (1950) by IBM Corp. as a computer…
(Encyclopedia) peritoneumperitoneumpĕrətənēˈəm [key], multilayered membrane which lines the abdominal cavity, and supports and covers the organs within it. The part of the membrane that lines the…
(Encyclopedia) Azeglio, Massimo Taparelli, marchese d'Azeglio, Massimo Taparelli, marchese d'mäsˈsēmō täpärĕlˈlē märkāˈzā dädzāˈlyō [key], 1798–1866, Italian premier and author, b. Turin. He studied…
(Encyclopedia) starvation, condition in which deprivation of food has forced the body to feed on itself. Causes are famine, fasting, malnutrition, or abnormalities of the mucosal lining of the…
(Encyclopedia) caravelcaravelkărˈəvĕlˌ [key] or carvelcarvelkärˈvəl [key], three-masted sailing vessel, generally square-rigged with the aftermast lateen-rigged. It had a roundish hull with a high…
