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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
Despite being as simple as water vapor and dust, contrails don’t always form or linger in a plane’s wake.
—Lauren Leffer, Popular Science, 12 Sep. 2024
The facility’s cooling system expels heat from the tens of thousands of computers inside by ejecting water vapor.
—Harry Booth, TIME, 5 Sep. 2024
In space, water converts from ice to water vapor at an extremely low temperature of negative 160 degrees Celsius, but powerful insulation from lunar soil could enable water ice deposits to remain in their solid form underground or in deep, shadowed craters.
—Lily Carey, Discover Magazine, 30 July 2024
Water that is transpired through foliage and evaporates from the soil surface will condense as water vapor on the inside of the bag, keeping the air humid around your plant, eliminating its need for irrigation.
—Joshua Siskin, Orange County Register, 18 July 2024
See all Example Sentences for water vapor
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 20 Sep. 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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