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radium

(Encyclopedia)radium rāˈdēəm [key] [Lat. radius=ray], radioactive metallic chemical element; symbol Ra; at. no. 88; mass number of most stable isotope 226; m.p. 700℃; b.p. 1,140℃; sp. gr. about 6.0; valence...

physiocrats

(Encyclopedia)physiocrats fĭzˈēəkrătsˌ [key], school of French thinkers in the 18th cent. who evolved the first complete system of economics. They were also referred to simply as “the economists” or “th...

French art

(Encyclopedia)French art, the artistic production of the region that constitutes the historic nation of France. See also French architecture. The innovations of postimpressionism, combined with the influence of C...

dentistry

(Encyclopedia)dentistry, treatment and care of the teeth and associated oral structures. Dentistry is mainly concerned with tooth decay, disease of the supporting structures, such as the gums, and faulty positionin...

Dominica

(Encyclopedia)CE5 Dominica dŏmĭnēˈkə [key], officially Commonwealth of Dominica, republic (2015 est. pop. 73,000) consisting of the island of Dominica (290 sq mi/750 sq km), located in the Windward Islands,...

Constance, Council of

(Encyclopedia)Constance, Council of, 1414–18, council of the Roman Catholic Church, some of its sessions being reckoned as the 16th ecumenical council. It was summoned to end the Great Schism (see Schism, Great),...

Ai Weiwei

(Encyclopedia)Ai Weiwei īˈ wāwā [key], 1957–, Chinese artist, architect, filmmaker, and political activist. He is the son of poet Ai Ch'ing, who was internally exiled (1958–76) to work camps with his family...

Geneva, canton and city, Switzerland

(Encyclopedia)Geneva jənēˈvə [key], Fr. Genève, canton, 109 sq mi (282 sq km), SW Switzerland, surroun...

Pierce, Franklin

(Encyclopedia)Pierce, Franklin, 1804–69, 14th President of the United States (1853–57), b. Hillsboro, N.H., grad. Bowdoin College, 1824. Admitted to the bar in 1827, he entered politics as a Jacksonian Democrat...

Newfoundland and Labrador, province, Canada

(Encyclopedia)CE5 Newfoundland and Labrador nyo͞oˈfənlənd, nyo͞ofənlăndˈ; lăbˈrədôrˌ [key], province (2001 pop. 512,930), 156,185 sq mi (404,519 sq km), E Canada. The province consists of the island...