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water vapor
noun
: 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
The geysers, whose origins are believed to be in the below-surface ocean, spray water vapor and ice particles.
—
Aaron Boorstein, Smithsonian Magazine, 8 July 2024
Where using coal pumps out carbon pollution, hydrogen produces only water vapor.
—
Rachel Ramirez, CNN, 23 June 2024
The dew point is the temperature to which air must be cooled to become saturated with water vapor.
—
Shelby Slade, The Arizona Republic, 28 May 2024
Legionella, the bacteria that causes the disease, is found in water vapor.
—
Elizabeth Keogh, New York Daily News, 29 Jan. 2024
See all Example Sentences for water vapor ![](/dist-cross-dungarees/2024-07-26--16-18-58-h04dq/images/svg/redesign/arrow-right-exemplar.svg)
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'water vapor.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
First Known Use
15th century, in the meaning defined above
Time Traveler
The first known use of water vapor was
in the 15th century
Dictionary Entries Near water vapor
Cite this Entry
“Water vapor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/water%20vapor. Accessed 26 Jul. 2024.
Kids Definition
water vapor
noun
: water in a gaseous form especially when below boiling temperature and spread through the atmosphere
Medical Definition
water vapor
noun
: water in a vaporous form especially when below boiling temperature and diffused (as in the atmosphere)
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