surfactant

noun

sur·​fac·​tant (ˌ)sər-ˈfak-tənt How to pronounce surfactant (audio)
ˈsər-ˌfak-
: a surface-active substance (such as a detergent)
surfactant adjective

Examples of surfactant in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
However, many shampoos contain surfactants called sulfates that can overly dry the hair and irritate the scalp. Bestreviews, Mercury News, 23 May 2025 Those mild surfactants are what give this gel the ability to form a very light, sudsy lather, which is important to me in a cleanser. Nicola Dall'asen, Allure, 7 May 2025 Non-active ingredients, namely ingredients that do not have a therapeutic effect (such as emollients, surfactants, and emulsifiers), cannot currently compete because they are not designed to target specific skin conditions. Joshua Britton, Time, 2 Apr. 2025 The formula uses coconut surfactants to effectively cleanse even the most sensitive scalps sans irritation—while still creating a satisfying lather. Arden Fanning Andrews, Vogue, 4 Mar. 2025 See All Example Sentences for surfactant

Word History

Etymology

surface-active + -ant

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of surfactant was in 1950

Browse Nearby Words

Cite this Entry

“Surfactant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/surfactant. Accessed 30 May. 2025.

Medical Definition

surfactant

noun
sur·​fac·​tant (ˌ)sər-ˈfak-tənt, ˈsər-ˌ How to pronounce surfactant (audio)
: a surface-active substance
specifically : a surface-active lipoprotein mixture which coats the alveoli and which prevents collapse of the lungs by reducing the surface tension of pulmonary fluids
surfactant adjective

More from Merriam-Webster on surfactant

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