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photoengraving

(Encyclopedia)photoengraving, photomechanical process in the graphic arts, used principally for reproducing illustrations. The subject is photographed, and the image is recorded on a sensitized metal plate, which i...

Yaoundé

(Encyclopedia)Yaoundé yäo͞ondāˈ [key], city (1990 est. pop. 750,000), capital of Cameroon. It is the country's administrative, financial, and communications center. Manufactures include cigarettes, dairy produ...

cameo

(Encyclopedia)cameo kămˈēō [key], small relief carving, usually on striated precious or semiprecious stones or on shell. The design, often a portrait head, is commonly cut in the light-colored vein, and the dar...

Canada balsam

(Encyclopedia)Canada balsam, yellow, oily, resinous exudation obtained from the balsam fir. It is an oleoresin (see resin) with a pleasant odor but a biting taste. It is a turpentine rather than a true balsam. On s...

cast-iron architecture

(Encyclopedia)cast-iron architecture, a term used to designate buildings that incorporate cast iron for structural and/or decorative purposes. After 1800 cast-iron supports were exploited as an alternative to mason...

Zsigmondy, Richard Adolf

(Encyclopedia)Zsigmondy, Richard Adolf, 1865–1929, Austrian-German chemist, Ph.D. Univ. of Munich, 1889. Zsigmondy was a lecturer at the Univ. of Munich (1887–1893) and at the Univ. of Graz (1893–97), then wo...

Silk Road

(Encyclopedia)Silk Road, ancient overland trade route linking Asia and Europe, consisting of a network of caravan routes running from China across central Asia to the shores of the Mediterranean. Its starting point...

liquid

(Encyclopedia)liquid, one of the three commonly recognized states in which matter occurs, i.e., that state, as distinguished from solid and gas, in which a substance has a definite volume but no definite shape. T...

Gehry, Frank Owen

(Encyclopedia)Gehry, Frank Owen gĕrˈē [key], 1929–, American architect, b. Toronto, Ont., as Frank Owen Goldberg. He is widely considered one of the finest and most artful of contemporary architects. In 1947, ...

life preserver

(Encyclopedia)life preserver, a personal flotation device (PFD) intended to keep the wearer afloat, particularly in case of shipwreck. A Type I PFD will keep even unconscious people afloat in a face–up position; ...