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bauxite

(Encyclopedia)bauxite bôkˈsīt, bŏkˈ– [key], mixture of hydrated aluminum oxides usually containing oxides of iron and silicon in varying quantities. A noncrystalline substance formerly thought to be a minera...

Sussex spaniel

(Encyclopedia)Sussex spaniel, breed of short, stocky sporting dog developed in England in the late 18th and early 19th cent. It stands about 15 in. (38 cm) high at the shoulder and weighs between 35 and 45 lb (15.9...

shellac

(Encyclopedia)shellac, solution of lac in alcohol or acetone. In commerce the name is applied to the resinous substance (lac) itself rather than to the solution. It ranges in color from orange to light yellow depen...

Shorthorn cattle

(Encyclopedia)Shorthorn cattle, breed of beef cattle developed from the native cattle of the Tees valley in NE England; formerly called Durham cattle. Systematic breeding of Shorthorns began in the latter part of t...

Standardbred horse

(Encyclopedia)Standardbred horse or trotter, American breed of light horse developed especially for harness, or sulky, racing. Of Thoroughbred ancestry, it is similar in appearance to a thoroughbred but has shorter...

Sèvres ware

(Encyclopedia)Sèvres ware, porcelain made in France by the royal (now national) potteries established (1745) by Louis XV at Vincennes, moved (1756) to Sèvres after changing hands. Before 1770 it was a soft-paste ...

chloroplast

(Encyclopedia)chloroplast klōrˈəplăstˌ, klôrˈ– [key], a complex, discrete green structure, or organelle, contained in the cytoplasm of plant cells. Chloroplasts are reponsible for the green color of almost...

cherub

(Encyclopedia)cherub chĕrˈəb [key], plural cherubim, kind of angel. Cherubim were probably thought of in the ancient Middle East as composite creatures like the winged creatures of Assyria. In Jewish tradition, ...

Moronobu

(Encyclopedia)Moronobu (Hishikawa Moronobu) hēshēkäˈwä mōrōˈnōbo͞o [key], c.1618–c.1694, Japanese painter and color-print designer of the ukiyo-e school. He began his career as an embroiderer. His first...

optical activity

(Encyclopedia)optical activity, the ability of asymmetric compounds to rotate the orientation of planar polarized light. Such compounds and their mirror images are know as enantiomers, or optical isomers. Although ...