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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
More intense rainfall events from storms of all kinds are becoming more likely as warming temperatures prime the atmosphere to hold more water vapor. Meghan Bartels, Scientific American, 23 Oct. 2025 The models suggested that the eruptions released water vapor into high altitudes, which could have frozen in the cold Martian atmosphere and later fallen as ice. Charles Q. Choi, Space.com, 22 Oct. 2025 These rivers of water vapor can extend thousands of miles. Doyle Rice, USA Today, 22 Oct. 2025 According to AirJoule Technologies, unlike traditional dehumidification systems, the technology uses advanced sorbent materials that efficiently absorb water vapor even at low humidity. Georgina Jedikovska, Interesting Engineering, 20 Oct. 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 26 Oct. 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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