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Feodor I
(Encyclopedia)Feodor I (Feodor Ivanovich) fyôˈdər, ēväˈnəvĭch [key], 1557–98, czar of Russia (1584–98), son of Ivan IV (Ivan the Terrible). Weak and incompetent, he left the government in the hands of h...Mansfeld, Peter Ernst von
(Encyclopedia)Mansfeld, Peter Ernst von pāˈtər ĕrnst fən mänsˈfĕlt [key], 1580?–1626, military commander in the Thirty Years War. Illegitimate son of a governor for the Hapsburgs in Luxembourg, he rendere...laetrile
(Encyclopedia)laetrile lāˈətrĭlˌ [key], name given to the chemical amygdalin, a substance derived from an extract of the kernels of many fruits, notably apricots, bitter almonds, and peaches. The idea that lae...sewing machine
(Encyclopedia)sewing machine, device that stitches cloth and other materials. An attempt at mechanical sewing was made in England (1790) with a machine having a forked, automatic needle that made a single-thread ch...Nestor, Russian chronicler
(Encyclopedia)Nestor nĕsˈtər [key], d. 1115?, Russian chronicler. A monk in a Kiev monastery, he wrote a life of saints Boris and Gleb and of the prior of his monastery St. Feodosi. Until recently the authorship...Caldwell, Sarah
(Encyclopedia)Caldwell, Sarah, 1924–2006, American opera director and conductor, b. Maryville, Mo. In 1957 she founded the Boston Opera Group, later renamed the Opera Company of Boston, and headed it until its de...Richter, Hans
(Encyclopedia)Richter, Hans rĭkhˈtər [key], 1888–1976, American artist, b. Germany. A painter and filmmaker, Richter was influenced by cubism and Dada and was a member of the Dutch de Stijl group (see Stijl, ...Schleiermacher, Friedrich Daniel Ernst
(Encyclopedia)Schleiermacher, Friedrich Daniel Ernst frēˈdrĭkh däˈnyĕl ĕrnst shlīˈərmäkhˌər [key], 1768–1834, German Protestant theologian, b. Breslau. He broke away from the Moravian Church and stud...critical mass
(Encyclopedia)critical mass: see chain reaction. ...tautomer
(Encyclopedia)tautomer tôˈtəmər [key], one of two or more structural isomers that exist in equilibrium and are readily converted from one isomeric form to another. Of the various types of tautomerism that are p...Browse by Subject
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