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Eucharist

(Encyclopedia)Eucharist yo͞oˈkərĭst [key] [Gr.,=thanksgiving], Christian sacrament that repeats the action of Jesus at his last supper with his disciples, when he gave them bread, saying, “This is my body,”...

oak

(Encyclopedia)oak, any tree or shrub of the genus Quercus of the family Fagaceae (beech family). This complex genus includes as many as 600, found chiefly in north temperate zones and also in Polynesia. The more so...

Polanski, Roman

(Encyclopedia)Polanski, Roman, 1933–, Polish-French film director, b. Paris. His family returned to Kraków, Poland, when he was three. His parents were imprisoned in Nazi concentration camps and his mother died ...

sumac

(Encyclopedia)CE5 Poison sumac, Rhus vernix sumac or sumach sho͞oˈmăk, so͞oˈ– [key], common name for some members of the Anacardiaceae, a family of trees and shrubs native chiefly to the tropics but rang...

acids and bases

(Encyclopedia)acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water. Another theory that provides a very broad ...

American architecture

(Encyclopedia)American architecture, the architecture produced in the geographical area that now constitutes the United States. Wright, generally acknowledged as one of the greatest architects of the 20th cent., ...

cooking

(Encyclopedia)cooking, the process of using heat to prepare foods for consumption. Many common cooking methods involve the use of oil. Frying is cooking in hot oil; sautéing is cooking in a small amount of oil; st...

ethanol

(Encyclopedia)ethanol ĕthˈənōlˌ [key] or ethyl alcohol, CH3CH2OH, a colorless liquid with characteristic odor and taste; commonly called grain alcohol or simply alcohol. Ethanol is used extensively as a solv...

Arnold, Matthew

(Encyclopedia)Arnold, Matthew, 1822–88, English poet and critic, son of the educator Dr. Thomas Arnold. Arnold was educated at Rugby; graduated from Balliol College, Oxford in 1844; and was a fellow of Oriel Coll...

piano

(Encyclopedia)piano or pianoforte, musical instrument whose sound is produced by vibrating strings struck by felt hammers that are controlled from a keyboard. The piano's earliest predecessor was the dulcimer. The ...