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yttrium

(Encyclopedia)yttrium ĭtˈrēəm [key] [for Ytterby, a town in Sweden], metallic chemical element; symbol Y; at. no. 39; at. wt. 88.90585; m.p. about 1,522℃; b.p. 3,338℃; sp. gr. about 4.45; valence +3. Yttriu...

Sturm und Drang

(Encyclopedia)Sturm und Drang shto͝orm o͝ont dräng [key] or Storm and Stress, movement in German literature that flourished from c.1770 to c.1784. It takes its name from a play by F. M. von Klinger, Wirrwarr; od...

deconstruction

(Encyclopedia)deconstruction, in linguistics, philosophy, and literary theory, the exposure and undermining of the metaphysical assumptions involved in systematic attempts to ground knowledge, especially in academi...

George V, king of Great Britain and Ireland

(Encyclopedia)George V (George Frederick Ernest Albert), 1865–1936, king of Great Britain and Ireland (1910–36), second son and successor of Edward VII. At the age of 12 he commenced a naval career, but this en...

Bering, Vitus Jonassen

(Encyclopedia)Bering, Vitus Jonassen vēˈto͝os yōˈnäsən bārˈĭng [key], 1681–1741, Danish explorer in Russian employ. In 1725 he was selected by Peter I to explore far NE Siberia. Having finally moved men...

hardness

(Encyclopedia)hardness, property of matter commonly described as the resistance of a substance to being scratched by another substance. The degree of hardness is relative, different substances being compared with o...

Zinzendorf, Nikolaus Ludwig, Graf von

(Encyclopedia)Zinzendorf, Nikolaus Ludwig, Graf von nēˈkōlous lo͝otˈvĭkh gräf fən tsĭnˈtsəndôrf [key], 1700–1760, German churchman, patron and bishop of the refounded Moravian Church, b. Dresden. Rear...

Polish literature

(Encyclopedia)Polish literature, the literary works of Poland. The regaining of Polish independence in 1919 after generations of partition inspired new literary activity. The Skamander group of urban poets, inclu...

Haushofer, Karl

(Encyclopedia)Haushofer, Karl kärl housˈhōfər [key], 1869–1946, German geographer, theorist of Nazi geopolitics, including the doctrines that the state is a living organism and that race and territory are lin...

kindergarten

(Encyclopedia)kindergarten [Ger.,=garden of children], system of preschool education. Friedrich Froebel designed (1837) the kindergarten to provide an educational situation less formal than that of the elementary s...