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Cappadocia

(Encyclopedia)Cappadocia kăpədōˈshə [key], ancient region of Asia Minor, watered by the Halys River (the modern Kizil Irmak), in present E central Turkey. The name was applied at different times to territories...

Van Dyck, Sir Anthony

(Encyclopedia)Van Dyck or Vandyke, Sir Anthony both: văn dīk [key], 1599–1641, Flemish portrait and religious painter and etcher, b. Antwerp. In 1618 he was received as a master in the artists' guild, but even ...

infrared radiation

(Encyclopedia)infrared radiation, electromagnetic radiation having a wavelength in the range from c.75 × 10−6 cm to c.100,000 × 10−6 cm (0.000075–0.1 cm). Infrared rays thus occupy that part of the electrom...

Zika virus

(Encyclopedia)Zika virus zēˈkə [key], single-stranded RNA virus of the genus flavivirus that infects human and primates and causes a disease known as Zika fever or zika. It is primarily transmitted by the bite o...

Audubon, John James

(Encyclopedia)Audubon, John James ôˈdəbŏn [key], 1785–1851, American ornithologist, b. Les Cayes, Santo Domingo (now Haiti). The illegitimate son of a French sea captain and plantation owner and a Creole cham...

Romance languages

(Encyclopedia)CE5 Romance languages, group of languages belonging to the Italic subfamily of the Indo-European family of languages (see Italic languages). Also called Romanic, they are spoken by about 670 millio...

ventilation

(Encyclopedia)ventilation, process of supplying fresh air to an enclosed space and removing from it air contaminated by odors, gases, or smoke. Proper ventilation requires also that there be a movement or circulati...

complex ion

(Encyclopedia)complex ion, charged molecular aggregate (see ion), consisting of a metallic atom or ion to which is attached one or more electron-donating molecules. In some complex ions, such as sulfate, SO4−2, t...

Alcott, Bronson

(Encyclopedia)Alcott, Bronson ôlˈkət, ăl–, –kŏt [key], 1799–1888, American educational and social reformer, b. near Wolcott, Conn., as Amos Bronson Alcox. His meager formal education was supplemented by ...

cubism

(Encyclopedia)cubism, art movement, primarily in painting, originating in Paris c.1907. In painting the several sources of cubist inspiration included the later work of Cézanne; the geometric forms and compresse...