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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

Example Sentences

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Hydrogen has often been touted as an environmentally-friendly future fuel because when burned the only by-product is water vapour.

From BBC • Apr. 21, 2026

The fewer trees there are, the less water vapour is emitted to create rain for their crops - which some farmers burn their land to make room for.

From BBC • Oct. 3, 2024

Observing water with a ground-based telescope is no mean feat as the abundant water vapour in Earth's atmosphere degrades the astronomical signals.

From Science Daily • Feb. 29, 2024

"Our recent images reveal a substantial quantity of water vapour at a range of distances from the star that include a gap where a planet could potentially be forming at the present time," says Facchini.

From Science Daily • Feb. 29, 2024

To carry out this idea the air under examination was placed in an air-tight receiver and saturated with water vapour.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" by Various

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