per·​spi·​ra·​tion | \ ˌpər-spə-ˈrā-shən How to pronounce perspiration (audio) \

Definition of perspiration

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 Dear Readers: Sneakers get smelly from all the perspiration, heat and running outside. Washington Post, 28 Aug. 2021 When perspiration on the surface of the skin evaporates, heat is lost and the blood is cooled, thus cooling our core body temperature. Cassie Shortsleeve, Outside Online, 2 June 2015 That’s quite a shame since a face wash works to remove dirt, perspiration, sebum, germs, dead skin cells, and any other pollutants from the skin. Grooming Playbook, The Salt Lake Tribune, 7 Apr. 2022 An irritant, that's perspiration getting trapped under there, rubbing, and creating a rash. Dana Rose Falcone, Allure, 16 Mar. 2022 The notion that water or perspiration somehow caused weakness was common worldwide until the 1950s. Roger Robinson, Outside Online, 4 Aug. 2020 The idea is that the stillsuit collects waste water [perspiration and urine] and recycles it like a distillery to make potable water. Ingrid Schmidt, The Hollywood Reporter, 14 Mar. 2022 A couple of feet in front of Sawyer, Bardic bent over slightly, a sheen of perspiration failing to mask a visage of utter exhaustion. Matt Le Cren,, 7 Mar. 2022 But for thousands of years, people have known perspiration plus persistence results in a longer, happier life. Tribune News Service, oregonlive, 15 Feb. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'perspiration.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of perspiration

1583, in the meaning defined at sense 1

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The first known use of perspiration was in 1583

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Last Updated

30 Apr 2022

Cite this Entry

“Perspiration.” Dictionary, Merriam-Webster, Accessed 17 May. 2022.

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More Definitions for perspiration


per·​spi·​ra·​tion | \ ˌpər-spə-ˈrā-shən How to pronounce perspiration (audio) \

Kids Definition of perspiration

1 : the act or process of perspiring
2 : salty liquid given off from skin glands


per·​spi·​ra·​tion | \ ˌpər-spə-ˈrā-shən How to pronounce perspiration (audio) \

Medical Definition of perspiration

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

More from Merriam-Webster on perspiration

Nglish: Translation of perspiration for Spanish Speakers

Britannica English: Translation of perspiration for Arabic Speakers Encyclopedia article about perspiration


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