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Phlogiston - Meaning, Definition & English Examples

Phlogiston was a hypothetical substance once believed to be released during combustion. It was part of an outdated scientific theory explaining fire before the discovery of oxygen.

phlogiston

/floʊˈdʒɪstən/ /flɒˈdʒɪstɒn/

Definition:

A hypothetical fire-like element once believed to be released during combustion.

Synonyms:

fire element, combustible principle, inflammable substance

Part of Speech:

noun

Antonyms:

oxygen, modern chemistry (contextual opposites)

Common Collocations:

phlogiston theory, phlogiston hypothesis, phlogiston concept

Derivatives:

phlogistic, phlogisticated

Usage Tips:

Use "phlogiston" in historical or scientific contexts discussing obsolete theories of combustion.

Common Phrases:

theory of phlogiston, phlogiston release, phlogiston transfer

Etymology:

From Greek "phlogistos" (flammable), coined in 17th-century alchemy to explain burning processes.

Examples:

  • 1. The alchemists believed phlogiston was released during burning.
  • 2. Modern chemistry disproved the existence of phlogiston.
  • 3. Lavoisier's experiments overturned the phlogiston theory.
  • 4. Phlogiston was thought to give substances their flammable properties.

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