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Agua

(Encyclopedia)Agua äˈwä, äˈgwä [key] [Span.,=volcano of water], volcano, 12,310 ft (3,752 m) high, S Guatemala. In 1541, climaxing several days of unceasing rain and earthquakes, a lahar (a fast-moving mud a...

Burle Marx, Roberto

(Encyclopedia)Burle Marx, Roberto, 1909–1994, Brazilian landscape architect. As an art student he visited (1928) Berlin's botanical gardens and became interested in tropical plants. Upon returning to Brazil (1930...

Shearing, Sir George Albert

(Encyclopedia)Shearing, Sir George Albert, 1919–2011, British jazz pianist, b. London. Shearing overcame lifelong blindness to become a world-famous musician, the creator of a style of jazz, and the composer of t...

Seram

(Encyclopedia)Seram, formerly Ceram both: sāˈräm [key], island, c.6,600 sq mi (17,100 sq km), E Indonesia, W of New Guinea, second largest of the Moluccas; also called Seran or Serang. Its chief port and town is...

sky

(Encyclopedia)sky, apparent dome over the earth, background of the clouds, sun, moon, and stars. The blue color of the clear daytime sky results from the selective scattering of light rays by the minute particles o...

chlorine

(Encyclopedia)chlorine klōrˈēn, klôrˈ– [key] [Gr.,=green], gaseous chemical element; symbol Cl; at. no. 17; interval in which at. wt. ranges 35.446–35.457; m.p. −100.98℃; b.p. −34.6℃; density 3.2 g...

fluoride

(Encyclopedia)fluoride, a salt of hydrofluoric acid; see hydrogen fluoride. See also fluoridation; fluorine. ...

operon

(Encyclopedia)operon, in genetics, site on a bacterial chromosome containing genes that control protein synthesis (structural genes) together with a gene that determines whether the structural genes are active or n...

marmalade

(Encyclopedia)marmalade [Port.,=quince preparation], thick preserve of fruit pulp, originally made from quinces (marmelos) and known in England from the 15th cent. Marmalade has a jellylike consistency and a slight...

mucopolysaccharide

(Encyclopedia)mucopolysaccharide myo͞oˌkəpŏlēsăkˈərīd [key], class of polysaccharide molecules, also known as glycosaminoglycans, composed of amino-sugars chemically linked into repeating units that give a...