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vapour

vapour

1 4.0
Gas produced when a liquid, like water, heats and rises into the air
  • noun
  • /ˈveɪpər/
  • UK
translation icon : vapor
  • When the kettle boiled, a steady flow of vapour filled the kitchen with steam.

We place it within our Gore Tex sleeve and then the Gore Tex gently regulates the release of the water vapour into the adjacent area.

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Examples

  • On a cold morning, we could see our breath as clouds of vapour in the air.

  • The ground fluctuated like a wave, and the chasms spurted out water and noxious vapours (quoted in Feehan and O'Donovan 1996, 405).

    Academic text (2002)
  • But warm air can hold more water vapour than cold air.

  • Please provide a reference for your claim about water vapour.

    Blog text (30)
  • And then what seems to happen is that this vapour layer is not uniformly thick.

  • So the image shows us that distinctive Halo and tail of a comet, and the spectrum shows us that there is water vapour present.

  • If we detect water vapour and methane, it may mean someday that we've detected evidence of life on another world.

  • As we spoke, little clouds of vapour sprang from our mouths like delicate ghosts.

    Fiction book (2001)
  • We place it within our Gore Tex sleeve and then the Gore Tex gently regulates the release of the water vapour into the adjacent area.

  • "These were fogs characterized by a thick, yellow, sulphurous vapour that plunged the streets into darkness, choked the lungs, and turned day into night" (28).

    Academic text (2018)

Synonyms

evaporation
vsvapour
  • Specialized
15 3.2

A liquid that turns into a gas when heated or left in open air

is broader, covering solids and the general action of becoming gas
vaporization
vsvapour
  • Specialized
1 5.6

The change of a liquid or solid into a gas like water turning into steam

is the same process named as the action of becoming a gas

Antonyms

condensation
  • Specialized
12 3.1

Water that forms on a cold surface when warm air cools

Surface Forms

vapour singular
vapours plural
vapors plural
vapor singular

Etymology

Vapour comes from an old Latin word vapor, which meant 'steam' or 'mist'. So, vapour now means the gas form of a liquid, and you can see the same root in evaporate, which means to turn into 'vapour'.