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logical positivism
(Encyclopedia)logical positivism, also known as logical or scientific empiricism, modern school of philosophy that attempted to introduce the methodology and precision of mathematics and the natural sciences into t...semantics
(Encyclopedia)semantics [Gr.,=significant] in general, the study of the relationship between words and meanings. The empirical study of word meanings and sentence meanings in existing languages is a branch of lingu...Prague
(Encyclopedia)Prague präg, prāg [key], Czech Praha, Ger. Prag, city (1993 pop. 1,216,500), capital and largest city of the Czech Republic and former capital of Czechoslovakia, on both banks of the Vltava (Ger. Mo...Walachia
(Encyclopedia)Walachia or Wallachia both: wälāˈkēə, wə– [key], historic region (29,568 sq mi/76,581 sq km), S Romania. The Transylvanian Alps separate it in the NW from Transylvania and the Banat; the Danub...leukemia
(Encyclopedia)leukemia lo͞okēˈmēə [key], cancerous disorder of the blood-forming tissues (bone marrow, lymphatics, liver, spleen) characterized by excessive production of immature or mature leukocytes (white b...Wittelsbach
(Encyclopedia)Wittelsbach vĭˈtəlsbäkh [key], German dynasty that ruled Bavaria from 1180 until 1918. The family takes its name from the ancestral castle of Wittelsbach in Upper Bavaria. In 1180 Holy Roman Emper...Moravia
(Encyclopedia)Moravia mərāˈvēə, mō– [key], Czech Morava, Ger. Mähren, region in the E Czech Republic. The region is bordered on the W by Bohemia, on the E by the Little and White Carpathian Mts., which div...Este, Italian noble family
(Encyclopedia)Este ĕsˈtā [key], Italian noble family, rulers of Ferrara (1240–1597) and of Modena (1288–1796) and celebrated patrons of the arts during the Renaissance. Probably of Lombard origin, they took ...cell, in biology
(Encyclopedia) CE5 Animal cell cell, in biology, the unit of structure and function of which all plants and animals are composed. The cell is the smallest unit in the living organism that is capable of integrati...Metropolitan Opera Company
(Encyclopedia)Metropolitan Opera Company, term used in referring collectively to the organizations that have produced opera at the Metropolitan Opera House, New York City. The original house, at West 39th Street an...Browse by Subject
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