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Mantegna, Andrea

(Encyclopedia)Mantegna, Andrea ändrĕˈä mäntĕˈnyä [key], 1431–1506, Italian painter of the Paduan school. He was adopted by Squarcione, whose apprentice he remained until 1456, when he procured his release...

Central American Federation

(Encyclopedia)Central American Federation or Central American Union, political confederation (1825–38) of the republics of Central America—Costa Rica, Guatemala, Honduras, Nicaragua, and Salvador. United under ...

Coen Brothers

(Encyclopedia)Coen Brothers, American filmmakers Joel Coen, 1955–, and Ethan Coen, 1958–, both b. St. Louis Park, Minn. Joel studied at New York Univ. Film School (B.A., 1978), Ethan at Princeton (B.A., 1979). ...

vanadium

(Encyclopedia)vanadium vənāˈdēəm [key], metallic chemical element; symbol V; at. no. 23; at. wt. 50.9415; m.p. about 1,890℃; b.p. 3,380℃; sp. gr. about 6 at 20℃; valence +2, +3, +4, or +5. Vanadium is a ...

Wallace, David Foster

(Encyclopedia)Wallace, David Foster, 1962–2008, American writer, b. Ithaca, N.Y., grad. Amherst College (B.A., 1985), Univ. of Arizona (M.F.A., 1987). He published his comic first novel, The Broom of the System (...

serpentine

(Encyclopedia)serpentine sûrˈpəntēn, –tīn [key], hydrous silicate of magnesium. It occurs in crystalline form only as a pseudomorph having the form of some other mineral and is generally found in the form of...

rhenium

(Encyclopedia)rhenium rēˈnēəm [key], metallic chemical element; symbol Re; at. no. 75; at. wt. 186.207; m.p. about 3,180℃; b.p. about 5,625℃; sp. gr. 21.02 at 20℃; valence −1, +2, +3, +4, +5, +6, or +7....

desert

(Encyclopedia)desert, arid region, usually partly covered by sand, having scanty vegetation or sometimes almost none, and capable of supporting only a limited and specially adapted animal population. The so-called ...

Pliny the Elder

(Encyclopedia)Pliny the Elder (Caius Plinius Secundus) plĭˈnē [key], c.a.d. 23–a.d. 79, Roman naturalist, b. Cisalpine Gaul. He was a friend and fellow military officer of Vespasian, becoming eventually an arm...

Servetus, Michael

(Encyclopedia)Servetus, Michael sərvēˈtəs [key], 1511–53, Spanish theologian and physician. His name in Spanish was Miguel Serveto. In his early years he came in contact with some of the leading reformers in ...