perspiration
noun
per·spi·ra·tion
ˌpər-spə-ˈrā-shən 
1
: the action or process of perspiring
2
: a saline fluid secreted by the sweat glands : sweat
Examples of perspiration in a Sentence
She wiped the perspiration from her forehead.
Recent Examples on the Web
Mosquitoes are drawn to lactic acid, ammonia and uric acid in perspiration, USA Today notes, along with skin concentrations of steroids, cholesterol and carboxylic acids.
—
Ryan Brennan
may 1, Sacbee.com, 1 May 2026
Within minutes, Mars was already drenched in sweat — not tasteful celebrity perspiration, but full-body, someone-get-this-man-a-Gatorade sweat.
—Théoden Janes, Charlotte Observer, 30 Apr. 2026
Heavier odors, like those left by perspiration, may require a baking soda soak prior to washing.
—Melissa Locker, Southern Living, 15 Mar. 2026
Fleece often wicks away perspiration to keep you dry during strenuous activities, so clean it more often than other coats.
—Mary Marlowe Leverette, The Spruce, 14 Jan. 2026
See All Example Sentences for perspiration
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Ryan Brennan
may 1, Sacbee.com, 1 May 2026
Within minutes, Mars was already drenched in sweat — not tasteful celebrity perspiration, but full-body, someone-get-this-man-a-Gatorade sweat.
—Théoden Janes, Charlotte Observer, 30 Apr. 2026
Heavier odors, like those left by perspiration, may require a baking soda soak prior to washing.
—Melissa Locker, Southern Living, 15 Mar. 2026
Fleece often wicks away perspiration to keep you dry during strenuous activities, so clean it more often than other coats.
—Mary Marlowe Leverette, The Spruce, 14 Jan. 2026
See All Example Sentences for perspiration
Cite this Entry
“Perspiration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perspiration. Accessed 21 May. 2026.
Copy CitationKids Definition
perspiration
noun
per·spi·ra·tion
ˌpər-spə-ˈrā-shən
1
: the act or process of perspiring
2
: a salty fluid given off by the sweat glands : sweat
Medical Definition
perspiration
noun
per·spi·ra·tion
ˌpər-spə-ˈrā-shən
1
: the act or process of perspiring
2
: a saline fluid that is secreted by the sweat glands, that consists chiefly of water containing sodium chloride and other salts, nitrogenous substances (as urea), carbon dioxide, and other solutes, and that serves both as a means of excretion and as a regulator of body temperature through the cooling effect of its evaporation
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