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Root, John Wellborn
(Encyclopedia)Root, John Wellborn, 1850–91, American architect, b. Lumpkin, Ga. He worked in New York City with James Renwick and became a partner of D. H. Burnham in Chicago. The firm created the modern type of ...Dennett, Tyler
(Encyclopedia)Dennett, Tyler dĕnˈĭt [key], 1883–1949, American historian and educator, b. Spencer, Wis. Dennett was lecturer in American history at Johns Hopkins (1923–24) and at Columbia (1927–28), chief ...Agnes, Saint
(Encyclopedia)Agnes, Saint, 4th cent., virgin martyr. A noble Roman girl martyred at the age of 13 after rejecting a well-born suitor. She was included in the Depositio Martyrum of 354. On her feast day lambs are b...John VIII, pope
(Encyclopedia)John VIII, d. 882, pope (872–82), a Roman; successor of Adrian II. John strenuously opposed the activities of St. Ignatius of Constantinople in Bulgaria. When Ignatius died, John recognized Photius ...root, in botany
(Encyclopedia) CE5 Longitudinal cross section of a root root, in botany, the descending axis of a plant, as contrasted with the stem, the ascending axis. In most plants the root is underground, but in epiphytes ...Burnham, Daniel Hudson
(Encyclopedia)Burnham, Daniel Hudson bûrˈnəm [key], 1846–1912, American architect and city planner b. Henderson, N.Y. He was trained in architects' offices in Chicago. In that city he established (1873) a part...square root
(Encyclopedia)square root: see root, in mathematics. ...salsify
(Encyclopedia)salsify, common name for a tall, narrow-leaved biennial (Tragopogon porrifolius) of the family Asteraceae (aster family), native to S Europe but now naturalized and sometimes growing as a weed in Nort...root, in mathematics
(Encyclopedia)root, in mathematics, number or quantity r for which an equation f(r)=0 holds true, where f is some function. If f is a polynomial, r is called a root of f; for example, r=3 and r=−4 are roots of th...radical, in mathematics
(Encyclopedia)radical, in mathematics, symbol () placed over a number or expression, called the radicand, to indicate a root of the radicand. When used without a sign or index number, as in 4, it designates the pos...Browse by Subject
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