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
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From cracks near its south pole, the moon blasts towering geysers of water vapor, ice and organic molecules into space, which are tantalizing hints of a hidden ocean that could, in theory, be habitable. Sharmila Kuthunur, Space.com, 12 Sep. 2025 The dew point is the temperature at which water vapor condenses into liquid and generally runs in the low 50s for the region this time of year, according to the weather service. Rick Hurd, Mercury News, 12 Sep. 2025 For centuries people have collected it from the fog rolling in from oceans or over mountains using vegetation, containers or mesh nets to catch water vapor and condense it. Laura Paddison, CNN Money, 6 Sep. 2025 The only waste product is water vapor. Michael Taylor, Forbes.com, 2 Sep. 2025 See All Example Sentences for water vapor

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

Browse Nearby Words

Cite this Entry

“Water vapor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/water%20vapor. Accessed 14 Sep. 2025.

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)
Last Updated: - Updated example sentences
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