• Vapor

    Pronunciation

    • UK IPA: /ˈveɪpə/
    • Rhymes: -eɪpə(r)

    Alternative forms

    Origin

    From Latin vapor ("steam, heat").

    Noun

    vapor

    (plural vapors)
    1. Cloudy diffused matter such as mist, steam or fumes suspended in the air.
    2. The gaseous state of a substance that is normally a solid or liquid.
      • 2013, Philip J. Bushnell, Solvents, Ethanol, Car Crashes & Tolerance, Surprisingly, this analysis revealed that acute exposure to solvent vapors at concentrations below those associated with long-term effects appears to increase the risk of a fatal automobile accident. Furthermore, this increase in risk is comparable to the risk of death from leukemia after long-term exposure to benzene, another solvent, which has the well-known property of causing this type of cancer.

    Full definition of vapor

    Verb

    1. (intransitive) To become vapor; to be emitted or circulated as vapor.
    2. (transitive) To turn into vapor.
    3. (intransitive) To use insubstantial language; to boast or bluster.
      • 1888, Rudyard Kipling, ‘The Bisara of Pooree’, Plain Tales from the Hills, Folio Society 2005, p. 172:He vapoured, and fretted, and fumed, and trotted up and down, and tried to make himself pleasing in Miss Hollis's big, quiet, grey eyes, and failed.

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