Columbia Encyclopedia

Search results

339 results found

manure

(Encyclopedia)manure, term used in the United States to refer to excreta of animals, with or without added bedding; also called barnyard manure. In other countries the term often refers to any material used to fert...

asphyxia

(Encyclopedia)asphyxia ăsfĭkˈsēə [key], deficiency of oxygen and excess of carbon dioxide in the blood and body tissues. Asphyxia, often referred to as suffocation, usually results from an interruption of brea...

Long Beach

(Encyclopedia)Long Beach. 1 City (1990 pop. 429,433), Los Angeles co., S Calif., on San Pedro Bay; est. 1882 as Willmore City, inc. 1888 as Long Beach. Having an excellent harbor, it serves as one of Los Angeles's ...

pass

(Encyclopedia)pass, opening or way by which a natural or artificial barrier can be crossed. The term pass is usually applied to a relatively narrow passage through a mountainous region. A pass, like an isthmus, may...

twilight

(Encyclopedia)twilight, period between sunset and total darkness or between total darkness and sunrise. Total darkness does not occur immediately when the sun sinks below the horizon because light from the sun that...

weather satellite

(Encyclopedia)weather satellite, artificial satellite used to gather data on a global basis for improvement of weather forecasting. Information includes cloud cover, storm location, temperature, and heat balance in...

Boucher, François

(Encyclopedia)Boucher, François fräNswäˈ bo͞oshāˈ [key], 1703–70, French painter. Boucher's art embodied the spirit of his time; it was elegant, frivolous, and artificial. He studied briefly with François...

reconnaissance satellite

(Encyclopedia)reconnaissance satellite, artificial satellite launched by a country to provide intelligence information on the military activities of foreign countries. There are four major types. Early-warning sate...

surrogate mother

(Encyclopedia)surrogate mother, a woman who agrees, usually by contract and for a fee, to bear a child for a couple who are childless because the wife is infertile or physically incapable of carrying a developing f...

synthetic textile fibers

(Encyclopedia)synthetic textile fibers have revolutionized the textile industry. Such artificial fibers are usually long-chain polymers, produced industrially by the condensation of many small units. Orlon is the t...