chemical war gases
111Saddam Hussein and al-Qaeda link allegations — were made by some U.S. Government officials who claimed that a highly secretive relationship existed between former Iraqi President Saddam Hussein and the radical Islamist militant organization Al Qaeda from 1992 to 2003, specifically through a… …
112Explosion — For other meanings of explosion , explode and similar, see Explosion (disambiguation). Detonation of explosives …
113atmosphere — atmosphereless, adj. /at meuhs fear /, n., v., atmosphered, atmosphering. n. 1. the gaseous envelope surrounding the earth; the air. 2. this medium at a given place. 3. Astron. the gaseous envelope surrounding a heavenly body. 4. Chem. any… …
114chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… …
115laser — /lay zeuhr/, n. Physics. a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase. Also called optical maser. [1955 60; …
116materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …
117Donald L. Campbell — Born August 5, 1904(1904 08 05) Clinton, Iowa, United States Died September 14, 2002( …
118Haber process — The Haber process, also called the Haber–Bosch process, is the nitrogen fixation reaction of nitrogen and hydrogen, over an iron substrate, to produce ammonia. Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food… …
119Inhalant — Inhalants are a broad range of drugs in the forms of gases, aerosols, or solvents which are breathed in and absorbed through the lungs. While some inhalant drugs are used for medical purposes, as in the case of nitrous oxide (a dental… …
120hydrogen — /huy dreuh jeuhn/, n. a colorless, odorless, flammable gas that combines chemically with oxygen to form water: the lightest of the known elements. Symbol: H; at. wt.: 1.00797; at. no.: 1; density: 0.0899 g/l at 0°C and 760 mm pressure. [1785 95;… …
