water vapor


Definition of water vapor

: water in a vaporous form especially when below boiling temperature and diffused (as in the atmosphere)

Examples of water vapor in a Sentence

Recent Examples on the Web Hurricanes are also becoming wetter because of more water vapor in the warmer atmosphere. BostonGlobe.com, 13 Sep. 2021 More water vapor in the atmosphere means more moisture available to fall as rain, which leads to higher rainfall rates. Brandon Miller, CNN, 23 Aug. 2021 To do so, the researchers loaded a syringe with a liquid sodium-potassium alloy and slowly exposed a drop of it to water vapor. Alex Viveros, Science | AAAS, 13 Aug. 2021 Aircraft engines also emit nitrogen oxides, soot particles, and water vapor, which also contribute to warming the planet. Aarian Marshall, Wired, 28 Sep. 2021 Spewing water vapor, carbon dioxide, and sulfur dioxide into the air, these explosions tore through the Martian surface over a 500-million-year period about 4 billion years ago. David Bressan, Forbes, 18 Sep. 2021 The second need is for water vapor, which has been increasing over the past several decades because of the warming atmosphere and oceans. Robin Lloyd, Scientific American, 31 Aug. 2021 The atmosphere stays hotter than expected mainly due to greenhouse gases such as carbon dioxide, methane and atmospheric water vapor, which all absorb outgoing heat. Sylvia G. Dee, The Conversation, 22 July 2021 Greenhouse gases include ubiquitous water vapor, methane, nitrous oxide, and above all, carbon dioxide, a gas released when fossil fuels are burned to power transportation, generate electricity, and are used to manufacture amenities of modern life. Richard Lindzen, National Review, 16 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'water vapor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of water vapor

15th century, in the meaning defined above

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Time Traveler for water vapor

Time Traveler

The first known use of water vapor was in the 15th century

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Dictionary Entries Near water vapor

water vacuole

water vapor

water varnish

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Statistics for water vapor

Last Updated

16 Oct 2021

Cite this Entry

“Water vapor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/water%20vapor. Accessed 16 Oct. 2021.

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More Definitions for water vapor

water vapor


Medical Definition of water vapor

: water in a vaporous form especially when below boiling temperature and diffused (as in the atmosphere)


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