evaporation
noun
evap·o·ra·tion
i-ˌva-pə-ˈrā-shən 
: the act or process of evaporating:
a
: change from a liquid to a vapor
evaporation of water
But warming increases the evaporation of ocean water, which could increase the snowfall on the Arctic and Antarctic ice sheets, remove water from the ocean, and lower sea level.—
Jack M. Hollander
Jack M. Hollander
b
: the vanishing or disappearance of something
The pope's attempt to arrest the evaporation of the Christian tradition in Europe was also unsuccessful.—Conrad Black
Conrad BlackNo longer a machine that accelerates the evaporation of resources, in the Roman context the banquet becomes a theatre of wealth and property, of social distinction, or social-climbing.—James N. Davidson
James N. DavidsonExamples of evaporation in a Sentence
Recent Examples on the Web
In the latest generation of Apple smartphones, released in September, the iPhone 17 Pro and Pro Max contain thin chambers of water that help dissipate heat through evaporation.
—Gwendolyn Rak, IEEE Spectrum, 27 Dec. 2025
The leaf canopy also helps keep the soil cooler in summer and warmer in winter while reducing moisture lost to evaporation—all of which benefits neighboring plants.
—Kim Toscano, Southern Living, 21 Dec. 2025
To maintain the pond after those nine months, since evaporation will cause water loss, the pond would continue drawing water as needed.
—Claudia Levens, jsonline.com, 16 Dec. 2025
Researchers suggest combining it with evaporation, selective adsorbents, or lithium-precipitating chemicals.
—Aamir Khollam, Interesting Engineering, 12 Dec. 2025
See All Example Sentences for evaporation
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Gwendolyn Rak, IEEE Spectrum, 27 Dec. 2025
The leaf canopy also helps keep the soil cooler in summer and warmer in winter while reducing moisture lost to evaporation—all of which benefits neighboring plants.
—Kim Toscano, Southern Living, 21 Dec. 2025
To maintain the pond after those nine months, since evaporation will cause water loss, the pond would continue drawing water as needed.
—Claudia Levens, jsonline.com, 16 Dec. 2025
Researchers suggest combining it with evaporation, selective adsorbents, or lithium-precipitating chemicals.
—Aamir Khollam, Interesting Engineering, 12 Dec. 2025
See All Example Sentences for evaporation
Cite this Entry
“Evaporation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/evaporation. Accessed 2 Jan. 2026.
Copy CitationMedical Definition
evaporation
noun
evap·o·ra·tion
i-ˌvap-ə-ˈrā-shən
: the change by which any substance is converted from a liquid state into and carried off in vapor
specifically
: the conversion of a liquid into vapor in order to remove it wholly or partly from a liquid of higher boiling point or from solids dissolved in or mixed with it
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