Columbia Encyclopedia

Search results

500 results found

ragweed

(Encyclopedia)ragweed, any plant of the genus Ambrosia, coarse, weedy herbs belonging to the family Asteraceae (aster family), most of which are native to America. They have inconspicuous greenish flowers and soft ...

Knights of the Golden Circle

(Encyclopedia)Knights of the Golden Circle, secret order of Southern sympathizers in the North during the Civil War. Its members were known as Copperheads. Dr. George W. L. Bickley, a Virginian who had moved to Ohi...

Empson, William

(Encyclopedia)Empson, William, 1906–84, English critic and poet. His Seven Types of Ambiguity (1930), a study of the meanings of poetry, is a classic of modern literary criticism. It was followed by Some Versions...

Schwartz, Anna Jacobson

(Encyclopedia)Schwartz, Anna Jacobson, 1915–2012, American research economist and financial historian, b. the Bronx, N.Y., grad. Barnard (B.A. 1934), Columbia (M.A. 1935, Ph.D. 1964). An outstanding exponent of m...

Nicolson, Marjorie Hope

(Encyclopedia)Nicolson, Marjorie Hope, 1894–1981, American educator, b. Yonkers, N.Y., grad. Univ. of Michigan (B.A., 1914; M.A., 1918) and Yale (Ph.D., 1920). She was dean and professor at Smith from 1929 to 194...

Vergil, Polydore

(Encyclopedia)Vergil or Virgil, Polydore, 1470?-1555?, historian and humanist, b. Urbino, Italy. He studied at Bologna and Padua, served as secretary to the duke of Urbino, was chamberlain to Pope Alexander VI, and...

bent grass

(Encyclopedia)bent grass, any species of the genus Agrostis of the family Poaceae (grass family), chiefly slender, delicate plants native to cool climates. Many are used for forage or lawns. Important species natur...

phosgene

(Encyclopedia)phosgene fŏsˈjēn [key], colorless poison gas, first used during World War I by the Germans (1915). When dispersed in air, the gas has the odor of new-mowed hay. The gas is highly toxic; when inhale...

rye grass

(Encyclopedia)rye grass, short-lived perennial, leafy, tufted plant belonging to the family Poaceae (grass family). Two species are grown in the United States—Italian rye grass (Lolium multiflorum), the leading h...
 

Browse by Subject