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
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The same report found that these fires are worsening air quality in many part of the country due to wildfire smoke, which is a mixture of gases, water vapor, air pollutants and fine particulate matter.
—
Mary Kekatos, ABC News, 14 Feb. 2026
Warmer air typically holds more water vapor.
—Daisy Dobrijevic, Space.com, 11 Feb. 2026
In 2023, meanwhile, Japanese firm Pale Blue flew a nano-satellite using water vapor propulsion for the first time.
—Chris Young, Interesting Engineering, 10 Feb. 2026
This protection doesn’t cover everything, however; lighter species of gases — including water vapor — are constantly stripped away by the solar wind, and seen in Venus’s magnetotail.
—Big Think, 5 Feb. 2026
See All Example Sentences for water vapor
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Mary Kekatos, ABC News, 14 Feb. 2026
Warmer air typically holds more water vapor.
—Daisy Dobrijevic, Space.com, 11 Feb. 2026
In 2023, meanwhile, Japanese firm Pale Blue flew a nano-satellite using water vapor propulsion for the first time.
—Chris Young, Interesting Engineering, 10 Feb. 2026
This protection doesn’t cover everything, however; lighter species of gases — including water vapor — are constantly stripped away by the solar wind, and seen in Venus’s magnetotail.
—Big Think, 5 Feb. 2026
See All Example Sentences for water vapor
Cite this Entry
“Water vapor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/water%20vapor. Accessed 22 Feb. 2026.
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