Columbia Encyclopedia

Search results

354 results found

agronomy

(Encyclopedia)agronomy əgrŏnˈəmē [key], branch of agriculture dealing with various physical and biological factors—including soil management, tillage, crop rotation, breeding, weed control, and climate—rel...

Vavilov, Nikolai Ivanovich

(Encyclopedia)Vavilov, Nikolai Ivanovich nyĭkəlīˈ ēväˈnəvĭch vəvēˈləf [key], 1887–1943?, Russian botanist and geneticist. He is reported to have died in a Soviet concentration camp after losing polit...

Vishniac, Roman

(Encyclopedia)Vishniac, Roman vĭshˈnēăk [key], 1897–1990, Russian-American biologist, photographer, linguist, art historian, and philosopher, b. Pavlosk, near St. Petersburg. Vishniac took degrees in medicine...

Vatican Council, Second

(Encyclopedia)Vatican Council, Second, popularly called Vatican II, 1962–65, the 21st ecumenical council (see council, ecumenical) of the Roman Catholic Church, convened by Pope John XXIII and continued under Pau...

Morgan, Thomas Hunt

(Encyclopedia)Morgan, Thomas Hunt, 1866–1945, American zoologist, b. Lexington, Ky., Ph.D. Johns Hopkins, 1890. He was professor of experimental zoology at Columbia (1904–28) and from 1928 was director of the l...

Kornberg, Arthur

(Encyclopedia)Kornberg, Arthur, 1918–2007, American biochemist, b. Brooklyn, grad. College of the City of New York (B.S., 1937) and Univ. of Rochester (M.D., 1941). In 1942 he joined the U.S. Public Health Servic...

Integrated Pest Management

(Encyclopedia)Integrated Pest Management (IPM), planned program that coordinates economically and environmentally acceptable methods of pest control with the judicious and minimal use of toxic pesticides. IPM progr...

trickster

(Encyclopedia)trickster, a mythic figure common among Native North Americans, South Americans, and Africans. Usually male but occasionally female or disguised in female form, he is notorious for exaggerated biologi...

Wilhelmshaven

(Encyclopedia)Wilhelmshaven vĭlˌhĕlms-häˈfən [key], city (1994 pop. 91,680), Lower Saxony, NW Germany, on Jade Bay, an inlet of the North Sea. It is a major oil port and an industrial center. Manufactures inc...