Columbia Encyclopedia

Search results

291 results found

Updike, John

(Encyclopedia)Updike, John, 1932–2009, American author, one of the nation's most distinguished 20th-century men of letters, b. Shillington, Pa., grad. Harvard, 1954. In his many novels and stories, written in a w...

Singer, Isaac Bashevis

(Encyclopedia)Singer, Isaac Bashevis bäshĕvˈĭs [key], 1904–91, American novelist and short-story writer in the Yiddish language, younger brother of I. J. Singer, b. Leoncin, Poland (then in Russia). The son o...

methadone

(Encyclopedia)methadone mĕthˈədōnˌ, –dŏnˌ [key], synthetic narcotic similar in effect to morphine. Synthesized in Germany, it came into clinical use after World War II. It is sometimes used as an analgesic...

menstruation

(Encyclopedia)menstruation, periodic flow of blood and cells from the lining of the uterus in humans and most other primates, occurring about every 28 days in women. Menstruation commences at puberty (usually betwe...

Butler, Judith

(Encyclopedia)Butler, Judith, 1956–, American philosopher and political theorist, b. Cleveland, Ph.D. Yale University, 1984. Holds the Hannah Arendt Chair at The Eu...

rat

(Encyclopedia)rat, name applied to various stout-bodied rodents, usually having a pointed muzzle, long slender tail, and dexterous forepaws. It refers particularly to the two species of house rat, Rattus norvegicus...

protozoan

(Encyclopedia)protozoan prōˌtəzōˈən [key], informal term for the unicellular heterotrophs of the kingdom Protista. Protozoans comprise a large, diverse assortment of microscopic or near-microscopic organisms ...

psychoanalysis

(Encyclopedia)psychoanalysis, name given by Sigmund Freud to a system of interpretation and therapeutic treatment of psychological disorders. Psychoanalysis began after Freud studied (1885–86) with the French neu...

Darwin, Charles Robert

(Encyclopedia)Darwin, Charles Robert, 1809–82, English naturalist, b. Shrewsbury; grandson of Erasmus Darwin and of Josiah Wedgwood. He firmly established the theory of organic evolution known as Darwinism. He st...

crustacean

(Encyclopedia)CE5 Internal anatomy of a female crayfish, representative of the class Crustacea crustacean krŭstāˈshən [key], primarily aquatic arthropod of the subphylum Crustacea. Most of the 44,000 crusta...