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
It is mined from evaporite deposits formed by the evaporation of mineral-rich water and is later processed into a white, water-soluble powder, says pest control expert Tony King.
—Louise Parks, Martha Stewart, 17 May 2026
Additionally, by covering the soil, leafy plants slow down evaporation rates, which helps regulate moisture levels for nearby plants.
—Lauren Landers, Better Homes & Gardens, 15 May 2026
Last year, the total water used (plus water lost to evaporation) was 3 million acre-feet more than what the river actually carried.
—Ian James, Los Angeles Times, 14 May 2026
High humidity reduces the evaporation of sweat, limiting the body’s primary cooling mechanism – that is why WBGT is important.
—Matt Slater, New York Times, 14 May 2026
See All Example Sentences for evaporation
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Louise Parks, Martha Stewart, 17 May 2026
Additionally, by covering the soil, leafy plants slow down evaporation rates, which helps regulate moisture levels for nearby plants.
—Lauren Landers, Better Homes & Gardens, 15 May 2026
Last year, the total water used (plus water lost to evaporation) was 3 million acre-feet more than what the river actually carried.
—Ian James, Los Angeles Times, 14 May 2026
High humidity reduces the evaporation of sweat, limiting the body’s primary cooling mechanism – that is why WBGT is important.
—Matt Slater, New York Times, 14 May 2026
See All Example Sentences for evaporation
Cite this Entry
“Evaporation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/evaporation. Accessed 21 May. 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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