follow Dictionary.com

What is the X in X-mas?

vapour

[vey-per] /ˈveɪ pər/
noun, verb (used with object), verb (used without object), Chiefly British
1.
Usage note
See -or1.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for vapour
  • The warm sea water is pressurised to transform it into vapour which drives a turbine.
  • All water vapour clouds retain heat at night and reduce heat from the sun during the day.
  • Similarly, methane has no effect on climate because photons that methane blocks are already totally blocked by water vapour.
  • These are boxes containing air that is super-saturated with water vapour.
  • They then condense the vapour-a process that requires electricity.
  • The energy is used to heat the brine, partially evaporating it, and to condense the resulting water vapour.
  • Use it to power a car, for example, and water vapour is all that spills from the exhaust pipe.
  • Hotter air holds more water vapour, and so can produce more rain.
  • Concentrated seawater is left at the bottom of the chambers, and freshwater vapour condenses above.
  • Conversely, condensation from vapour to liquid liberates heat.
British Dictionary definitions for vapour

vapour

/ˈveɪpə/
noun
1.
particles of moisture or other substance suspended in air and visible as clouds, smoke, etc
2.
a gaseous substance at a temperature below its critical temperature Compare gas (sense 3)
3.
a substance that is in a gaseous state at a temperature below its boiling point
4.
(rare) something fanciful that lacks substance or permanence
5.
(archaic) the vapours, a depressed mental condition believed originally to be the result of vaporous exhalations from the stomach
verb
6.
to evaporate or cause to evaporate; vaporize
7.
(intransitive) to make vain empty boasts; brag
Derived Forms
vapourable, (US) vaporable, adjective
vapourability, (US) vaporability, noun
vapourer, (US) vaporer, noun
vapourish, (US) vaporish, adjective
vapourless, (US) vaporless, adjective
vapour-like, (US) vapor-like, adjective
vapoury, (US) vapory, adjective
Word Origin
C14: from Latin vapor
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for vapour

Some English speakers likely know this word

Word Value for vapour

11
14
Scrabble Words With Friends

Quotes with vapour

Nearby words for vapour