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water vapour

British  

noun

  1. water in the gaseous state, esp when due to evaporation at a temperature below the boiling point Compare steam

"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

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It starts off as a cute little white cloud -- a cumulus cloud, which is formed because water vapour has turned into tiny droplets.

From Barron's Jul. 27, 2026

As the air rises, it cools, and the water vapour condenses into a cloud.

From BBC Jul. 27, 2026

As the Sun heats the ground, the water vapour suddenly condenses.

From Barron's Jul. 27, 2026

Firstly, there’s the cooling and condensation process which cools humid air to its dew point, causing water vapour to condense into liquid water.

From BBC May 27, 2024

Rainfall usually increases with increasing altitude up to a certain point, beyond which, owing to the loss of water vapour, this increase stops.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" by Various

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