| phlogiston | <chemistry> The hypothetical principle of fire, or inflammability, regarded by Stahl as a chemical element. This was supposed to be united with combustible (phlogisticated) bodies and to be separated from incombustible (dephlogisticated) bodies, the phenomena of flame and burning being the escape of phlogiston. Soot and sulphur were regarded as nearly pure phlogiston. The essential principle of this theory was, that combustion was a decomposition rather than the union and combination which it has since been shown to be. Origin: NL, fr. Gr. Burnt, set on fire, fr. To set on fire, to burn, fr, a flame, blaze. See Phlox. Source: Websters Dictionary (01 Mar 1998) |
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| phlogiston theory | <chemistry> The hypothetical principle of fire, or inflammability, regarded by Stahl as a chemical element. This was supposed to be united with combustible (phlogisticated) bodies and to be separated from incombustible (dephlogisticated) bodies, the phenomena of flame and burning being the escape of phlogiston. Soot and sulphur were regarded as nearly pure phlogiston. The essential principle of this theory was, that combustion was a decomposition rather than the union and combination which it has since been shown to be. Origin: NL, fr. Gr. Burnt, set on fire, fr. To set on fire, to burn, fr, a flame, blaze. See Phlox. Source: Websters Dictionary (01 Mar 1998) |
| phlogiston |
a hypothetical substance once believed to be present in all combustible materials and to be released during burning
Ãâó: wordnet.princeton.edu/perl/webwn
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| phlogiston |
An imaginary element once thought to be given off when objects burned.
Ãâó: xenon.che.ilstu.edu/genchemhelphomepage/glossary/p...
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| phlogiston theory |
A theory of combustion introduced by Johann Becher (1635-82) and refined by Georg Stahl in about 1700. It assumes that all combustible substances contain phlogiston, which is liberated when the substance is heated, leaving calx or ash. The theory was finally overthrown in the late 18th century by Antoine Lavoisier, who correctly explained combustion in terms of oxidation.
Ãâó: www.msnucleus.org/membership/html/jh/earth/diction...
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| phlogiston t. |
see phlogiston.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| phlogiston | a hypothetical substance once believed to be present in all combustible materials and to be released during burning |
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