vapour
Steam's visible form
Vapour is the British spelling of vapor—a substance in gaseous form, especially one that is normally liquid or solid at room temperature.
Water vapour fills the air after a hot shower.
The word extends to anything insubstantial or fleeting: His promises turned to vapour.
To vapour is to emit mist or, archaically, to boast idly.
Low-lying cloud cover
- hazeMurky atmospheric suspension
- steamHeated water's gaseous form
- cloudAtmospheric water vapor mass
- sprayDispersed liquid droplets
brume · smog · mizzle · condensation · dew · drizzle · nebulosity · murk
Heat to bubbling point
- condenseMake more compact
- distillPurify through vaporization
- sublimateRedirect impulses constructively
- volatilizeConvert to vapor
steam · humidity · dewpoint · kettle · heat · temperature · simmer · dehydrate
Heated water's gaseous form
volatile · propellant · inhalant · solvent · gaseous · airborne · diffuse · noxious
Lacking physical or material substance
- intangibleNot physically present
- ghostlyResembling a specter
- spectralGhostlike or wavelength-related
- phantasmalLike an apparition
ephemeral · fleeting · evanescent · transient · vanishing · fading · dissipating · wispy
Moisture in atmosphere
- dampnessMild presence of water
- condensationVapor turning to liquid
- wetnessState of being soaked
- clamminessMoist, cool dampness
mugginess · perspiration · sweat · breath · exhalation · steamy · dewy · humid
fog
Low-lying cloud cover
spray · brume · smog · mizzle · condensation · dew · drizzle · nebulosity · murk · veil
boil
Heat to bubbling point
- condenseMake more compact
- distillPurify through vaporization
- sublimateRedirect impulses constructively
volatilize · steam · humidity · dewpoint · kettle · heat · temperature · simmer · dehydrate · dry
steam
Heated water's gaseous form
aerosol · volatile · propellant · inhalant · solvent · gaseous · airborne · diffuse · noxious · toxic
insubstantial
Lacking physical or material substance
- intangibleNot physically present
- ghostlyResembling a specter
- spectralGhostlike or wavelength-related
phantasmal · ephemeral · fleeting · evanescent · transient · vanishing · fading · dissipating · wispy · delicate
humidity
Moisture in atmosphere
- dampnessMild presence of water
- condensationVapor turning to liquid
- wetnessState of being soaked
clamminess · mugginess · perspiration · sweat · breath · exhalation · steamy · dewy · humid · tropical
- water vaporH₂O in gaseous state
- vapor trailsCondensed exhaust behind aircraft
- vapor rubMentholated topical decongestant
- vapour trailCondensed aircraft exhaust visible aloft
- water vapourAirborne moisture, gaseous state
- toxic vaporsHarmful airborne chemical emissions
vapor, evaporate, evaporation, vaporous, vapors, vaporize, evaporator, vapours, evaporative