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internal-combustion engine

(Encyclopedia)CE5 Internal-combustion engines: In the four-stroke reciprocating engine (above), a mixture of fuel and air is taken into the chamber on the down-stroke of the piston, is compressed on the up-strok...

clay

(Encyclopedia)clay, common name for a number of fine-grained, earthy materials that become plastic when wet. Chemically, clays are hydrous aluminum silicates, ordinarily containing impurities, e.g., potassium, sodi...

Da Ponte, Lorenzo

(Encyclopedia)Da Ponte, Lorenzo lōrĕntˈsō dä pônˈtā [key], 1749–1838, Italian librettist and teacher, b. Ceneda as Emmanuele Conegliano. Born Jewish, he converted to Catholicism at 14, became (1773) a pri...

Crane, Stephen

(Encyclopedia)Crane, Stephen, 1871–1900, American novelist, poet, and short-story writer, b. Newark, N.J. Often designated the first modern American writer, Crane is ranked among the authors who introduced realis...

church music

(Encyclopedia)church music. 1 Music intended for performance as part of services of worship. With few exceptions, music is essential to the ritual of every religion; the singing of prayers and portions of Scripture...

industrial union

(Encyclopedia)industrial union, labor union composed of all the workers in a given industry, regardless of skill, craft, or occupation (as opposed to the craft union, in which all members are of one skill, such as ...

Job

(Encyclopedia)Job jōb [key], book of the Bible. The book is of unknown authorship and date, although many scholars assign it to a time between 600 b.c. and 400 b.c. A lament in narrative form, the subject is the p...

Mather, Cotton

(Encyclopedia)Mather, Cotton măᵺˈər [key], 1663–1728, American Puritan clergyman and writer, b. Boston, grad. Harvard (B.A., 1678; M.A., 1681); son of Increase Mather and grandson of Richard Mather and of Jo...

villein

(Encyclopedia)villein vĭlˈən [key] [O.Fr.,=village dweller], peasant under the manorial system of medieval Western Europe. The term applies especially to serfs in England, where by the 13th cent. the entire unfr...

Stuart, James Francis Edward

(Encyclopedia)Stuart or Stewart, James Francis Edward, 1688–1766, claimant to the British throne, son of James II and Mary of Modena; called the Old Pretender. His birth, falsely rumored by Whigs at the time to b...