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opal
(Encyclopedia)opal ōˈpəl [key], a mineral consisting of poorly crystalline to amorphous silica, SiO2·nH2O; the water content is quite variable but usually ranges from 3% to 10%. Common opal is usually colorless...Toronto, University of
(Encyclopedia)Toronto, University of, at Toronto, Ont., Canada; nondenominational; provincially supported; coeducational; founded 1827 as King's College. It achieved university status in 1849 and is governed under ...ocher
(Encyclopedia)ocher ōˈkər [key], mixture of varying proportions of iron oxide and clay, used as a pigment. It occurs naturally as yellow ocher (yellow or yellow-brown in color), the iron oxide being limonite, or...Bell, Alexander Melville
(Encyclopedia)Bell, Alexander Melville, 1819–1905, Scottish-American educator, b. Edinburgh. Bell worked out a physiological or visible alphabet, with symbols that were intended to represent every sound of the hu...mainstreaming
(Encyclopedia)mainstreaming, in education, practice of teaching handicapped children in regular classrooms with nonhandicapped children to the fullest extent possible; such children may have orthopedic, intellectua...Brown, Margaret Wise
(Encyclopedia)Brown, Margaret Wise, 1910–52, American children's book author, b. Brooklyn, N.Y., B.A Hollins College, 1932. Continuing her education at the Bureau of Educational Experiments (now the Bank Street C...British Columbia, University of
(Encyclopedia)British Columbia, University of, at Vancouver, British Columbia, Canada; provincially supported; coeducational; chartered 1908, opened 1915. It has faculties of arts, science, graduate studies, applie...mountain
(Encyclopedia)mountain, high land mass projecting conspicuously above its surroundings and usually of limited width at its summit. Although isolated mountains are not unusual, mountains commonly form ranges, compri...Sánchez Cerén, Salvador
(Encyclopedia)Sánchez Cerén, Salvador sĕrēnˈ [key], 1944–, Salvadoran rebel and political leader. After attending Alberto Masferrer Salvadoran Univ. (grad. 1963), he became a teacher and was active in the t...Food and Drug Administration
(Encyclopedia)Food and Drug Administration (FDA), agency of the Public Health Service division of the U.S. Department of Health and Human Services. It is charged with protecting public health by ensuring that foods...Browse by Subject
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