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tourmaline
(Encyclopedia)tourmaline to͝orˈməlĭn, –lēn [key], complex borosilicate mineral with varying amounts of aluminum, iron, magnesium, sodium, lithium, potassium, and sometimes other elements, used as a gem. It o...Treisman, Anne
(Encyclopedia)Treisman, Anne, 1935–2018, British cognitive psychologist, b. Anne Marie Taylor, Ph.D. Oxford, 1962. She taught at Oxford from 1968, the Univ. of British Columbia from 1978, Univ. of California, Ber...bear, in zoology
(Encyclopedia)bear, large mammal of the family Ursidae in the order Carnivora, found almost exclusively in the Northern Hemisphere. Bears have large heads, bulky bodies, massive hindquarters, short, powerful limbs,...public health
(Encyclopedia)public health, field of medicine and hygiene dealing with the prevention of disease and the promotion of health by government agencies. In the United States, public health authorities are engaged in m...syphilis
(Encyclopedia)syphilis sĭfˈəlĭs [key], contagious sexually transmitted disease caused by the spirochete Treponema pallidum (described by Fritz Schaudinn and Erich Hoffmann in 1905). Syphilis was not widely reco...D'Annunzio, Gabriele
(Encyclopedia)D'Annunzio, Gabriele gäbrēĕˈlā dän-no͞onˈtsyō [key] 1863–1938, Italian poet, novelist, dramatist, and soldier, b. Pescara. He went to Rome in 1881 and there began his literary career. Consi...Sainte-Chapelle
(Encyclopedia)Sainte-Chapelle săNt-shäpĕlˈ [key], former chapel in Paris. Forming part of the buildings of the Palais de Justice (once the royal palace) on the Île-de-la-Cité, it was built by Pierre de Montre...Pissarro, Camille
(Encyclopedia)Pissarro, Camille kämēˈyə pēsärōˈ [key], 1830–1903, French impressionist painter, b. St. Thomas, Virgin Islands. In Paris from 1855, he came under the influence of Corot and the Barbizon sch...Plessy v. Ferguson
(Encyclopedia)Plessy v. Ferguson, case decided by the U.S. Supreme Court in 1896. The court upheld an 1890 Louisiana statute mandating racially segregated but equal railroad carriages, ruling that the equal protect...stratification
(Encyclopedia)stratification (Lat.,=made in layers), layered structure formed by the deposition of sedimentary rocks. Changes between strata are interpreted as the result of fluctuations in the intensity and persis...Browse by Subject
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