Columbia Encyclopedia

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Continental System

(Encyclopedia)Continental System, scheme of action adopted by Napoleon I in his economic warfare with England from 1806 to 1812. Economic warfare had been carried on before 1806, but the system itself was initiated...

cooling system

(Encyclopedia)cooling system: see air conditioning; internal-combustion engine; refrigeration. ...

circulatory system

(Encyclopedia)CE5 Circulatory system circulatory system, group of organs that transport blood and the substances it carries to and from all parts of the body. The circulatory system can be considered as compose...

endocrine system

(Encyclopedia)endocrine system ĕnˈdəkrĭn [key], body control system composed of a group of glands that maintain a stable internal environment by producing chemical regulatory substances called hormones. The end...

examination system

(Encyclopedia)examination system: see Chinese examination system. ...

expert system

(Encyclopedia)expert system, a computer system or program that uses artificial intelligence techniques to solve problems that ordinarily require a knowledgeable human. The method used to construct such systems, kno...

integumentary system

(Encyclopedia)integumentary system: see skin.

heliocentric system

(Encyclopedia)heliocentric system: see Copernican system. ...

geocentric system

(Encyclopedia)geocentric system: see Ptolemaic system. ...

gastrointestinal system

(Encyclopedia)gastrointestinal system: see digestive system. ...