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vomiting

(Encyclopedia)vomiting, ejection of food and other matter from the stomach through the mouth, often preceded by nausea. The process is initiated by stimulation of the vomiting center of the brain by nerve impulses ...

Werner, Abraham Gottlob

(Encyclopedia)Werner, Abraham Gottlob äˈbrähäm gôtˈlōp vĕrˈnər [key], 1750–1817, German geologist. In 1775 he became inspector and teacher in the mining academy at Freiberg, which through his efforts be...

Tomonaga, Sinichiro

(Encyclopedia)Tomonaga, Sinichiro or Sin-Itiro, 1906–79, Japanese physicist, Ph.D. Kyoto Imperial Univ., 1939. He was a professor at Bunrika Univ. (now Tokyo Univ. of Education) from 1941 to 1956, then served pre...

Tovey, Sir Donald Francis

(Encyclopedia)Tovey, Sir Donald Francis tōˈvē [key], 1875–1940, English pianist and musicologist, grad. Oxford, 1898. As a pianist he appeared in England and on the Continent after 1900 and in the United State...

Yorkshire terrier

(Encyclopedia)Yorkshire terrier, breed of small, spirited toy dog originated and developed in Yorkshire, England, in the mid-19th cent. It stands about 9 in. (22.8 cm) high at the shoulder and weighs from 4 to 7 lb...

Broglie, Louis Victor, duc de

(Encyclopedia)Broglie, Louis Victor, duc de, 1892–1987, French physicist. In 1928 he became professor in the faculty of sciences, Univ. of Paris. It was known from the earlier quantum theory that light waves some...

Riggs, Bobby

(Encyclopedia)Riggs, Bobby (Robert Larimore Riggs), 1918–95, U.S. tennis player, b. Los Angeles. Playing tennis from the age of 11, Riggs won several tournaments in the 1930s and helped the U.S. team win the Davi...

neutrino astronomy

(Encyclopedia)neutrino astronomy, study of stars by means of their emission of neutrinos, fundamental particles that result from nuclear reactions and are emitted by stars along with light. Approximately 100 billio...

Dworkin, Ronald Myles

(Encyclopedia)Dworkin, Ronald Myles, 1931–2013, American legal philosopher. b. Worcester, Mass. A professor at Yale (1962–75), Oxford (1969–98), New York Univ. (1975–2013), and University College London (19...

custom

(Encyclopedia)custom, habitual group pattern of behavior that is transmitted from one generation to another and is not biologically determined. Since societies are perpetually changing, no matter how slowly, all cu...