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cement

(Encyclopedia) cement, binding material used in construction and engineering, often called hydraulic cement, typically made by heating a mixture of limestone and clay until it almost fuses and then…

Shepard, Sam

(Encyclopedia) Shepard, Sam, 1943–2017, one of the major American playwrights and actors of his era, b. Fort Sheridan, Ill., as Samuel Shepard Rogers 3d. A product of the 1960s counterculture and an…

rye, in botany

(Encyclopedia) rye, cereal grain of the family Poaceae (grass family). The grain, Secale cereale, is important chiefly in Central and N Europe. It seems to have been domesticated later than wheat and…

gas laws

(Encyclopedia) gas laws, physical laws describing the behavior of a gas under various conditions of pressure, volume, and temperature. Experimental results indicate that all real gases behave in…

milk, food

(Encyclopedia) milk, liquid secreted by the mammary glands of female mammals as food for their young. The milk of the cow is most widely used by humans, but the milk of the mare, goat, ewe, buffalo,…

asbestos, mineral

(Encyclopedia) asbestos, common name for any of a variety of silicate minerals within the amphibole and serpentine groups that are fibrous in structure and more or less resistant to acid and fire.…

duma

(Encyclopedia) dumadumad&oomacr;ˈmä [key], Russian name for a representative body, particularly applied to the Imperial Duma established as a result of the Russian Revolution of 1905. The…

kinetic-molecular theory of gases

(Encyclopedia) kinetic-molecular theory of gases, physical theory that explains the behavior of gases on the basis of the following assumptions: (1) Any gas is composed of a very large number of very…

Jobs, Steven Paul

(Encyclopedia) Jobs, Steven PaulJobs, Steven Pauljŏbz [key], 1955–2011, American computer-industry executive, b. San Francisco. He dropped out of Reed College (1972), and working with Stephen Wozniak…

liability

(Encyclopedia) liability, in law, an obligation of one party to another, usually to compensate financially. It is a fundamental aspect of tort law, although liability may also arise from duties…