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 But acrylic paints have additives called surfactants that help to keep pigments suspended in the paint tube rather than settling to the bottom. Sarah Everts, Scientific American, 1 Apr. 2016 Even though it’s made with just 11 ingredients—none of which are harsh surfactants or sulfates—your child will enjoy it as a good sudsy shampoo. Sarah Bradley, Parents, 20 May 2024 The unique blend of enzymes and surfactants effectively removes dirt, sweat, and odors while preserving the fabric's integrity. Amber Smith, Discover Magazine, 21 Apr. 2023 Commercial cleaners often contain powerful degreasers and surfactants designed to break down grease and grime with minimal scrubbing. Maryal Miller Carter, USA TODAY, 26 Mar. 2024 See all Example Sentences for surfactant 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'surfactant.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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

Dictionary Entries Near surfactant

Cite this Entry

“Surfactant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/surfactant. Accessed 27 Jun. 2024.

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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