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cerium

(Encyclopedia)cerium sērˈēəm [key] [from the asteroid Ceres], metallic chemical element; symbol Ce; at. no. 58; at. wt. 140.116; m.p. 799℃; b.p. 3,426℃; sp. gr. 6.77 at 25℃; valence +3 or +4. Cerium is a ...

urea

(Encyclopedia)CE5 urea yo͝oēˈə [key], organic compound that is the principal end product of nitrogen metabolism in most mammals. Urea was the first animal metabolite to be isolated in crystalline form; its c...

Hindenburg, Paul von

(Encyclopedia)Hindenburg, Paul von hĭnˈdənbûrg, Ger. poul fən hĭnˈdənbo͝ork [key], 1847–1934, German field marshal and president (1925–34), b. Poznan (then in Prussia). His full name was Paul Ludwig Ha...

Tchaikovsky, Peter Ilyich

(Encyclopedia)Tchaikovsky, Peter Ilyich ĭlyēchˈ chīkôfˈskē [key], 1840–93, Russian composer, b. Kamsko-Votkinsk. Variant transliterations of his name include Tschaikovsky and Chaikovsky. He is a towering f...

idealism

(Encyclopedia)idealism, the attitude that places special value on ideas and ideals as products of the mind, in comparison with the world as perceived through the senses. In art idealism is the tendency to represent...

Nibelungen

(Encyclopedia)Nibelungen –lētˌ [key] [song of the Nibelungen] is a long Middle High German epic by a south German poet of the early 13th cent. It includes pagan legends and traditions but is patently the produc...

Stuttgart, city, Germany

(Encyclopedia)Stuttgart shto͝otˈgärt [key], city (1994 pop. 594,406), capital of Baden-Württemberg, SW Germany, on the Neckar River. It is a major transportation point, with a large river port and an internatio...

Berg, Alban

(Encyclopedia)Berg, Alban älˈbän bĕrk [key], 1885–1935, Austrian composer. In his youth he taught himself music but in 1904 he became the pupil and close friend of Arnold Schoenberg. Later Berg himself taught...

Barth, Karl

(Encyclopedia)Barth, Karl bärt [key], 1886–1968, Swiss Protestant theologian, one of the leading thinkers of 20th-century Protestantism. He helped to found the Confessing Church and his thinking formed the theol...

dialectical materialism

(Encyclopedia)dialectical materialism, official philosophy of Communism, based on the writings of Karl Marx and Friedrich Engels, as elaborated by G. V. Plekhanov, V. I. Lenin, and Joseph Stalin. In theory dialecti...