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单词 phlogiston
释义

Definition of phlogiston in English:

phlogiston

noun fləˈɡɪst(ə)nfləˈdʒɪst(ə)nfloʊˈdʒɪstən
mass noun
  • A substance supposed by 18th-century chemists to exist in all combustible bodies, and to be released in combustion.

    Example sentencesExamples
    • And combustion, as they understood it, happened when phlogiston, a hypothetical earthlike substance characterized mainly by its combustibility, was removed from an object.
    • For example, sun-centered astronomy replaced earth-centered, oxygen superseded phlogiston, and absolute space gave way to curved space.
    • According to the phlogiston theory, combustible materials contain a substance - phlogiston - that is emitted by the material as it burns.
    • In the phlogiston theory, phlogiston is released during combustion, and in the oxygen theory, oxygen is absorbed during combustion.
    • Biologists used to believe in the inheritance of acquired characteristics, chemists in phlogiston, physicists in absolute (pre-relativity) time.

Origin

Mid 18th century: modern Latin, from Greek phlogizein 'set on fire', from phlox, phlog- 'flame', from the base of phlegein 'to burn'.

 
 

Definition of phlogiston in US English:

phlogiston

nounfloʊˈdʒɪstənflōˈjistən
  • A substance supposed by 18th-century chemists to exist in all combustible bodies, and to be released in combustion.

    Example sentencesExamples
    • And combustion, as they understood it, happened when phlogiston, a hypothetical earthlike substance characterized mainly by its combustibility, was removed from an object.
    • Biologists used to believe in the inheritance of acquired characteristics, chemists in phlogiston, physicists in absolute (pre-relativity) time.
    • For example, sun-centered astronomy replaced earth-centered, oxygen superseded phlogiston, and absolute space gave way to curved space.
    • According to the phlogiston theory, combustible materials contain a substance - phlogiston - that is emitted by the material as it burns.
    • In the phlogiston theory, phlogiston is released during combustion, and in the oxygen theory, oxygen is absorbed during combustion.

Origin

Mid 18th century: modern Latin, from Greek phlogizein ‘set on fire’, from phlox, phlog- ‘flame’, from the base of phlegein ‘to burn’.

 
 
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更新时间:2024/12/23 9:40:59