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surface-active agent

American  
[sur-fis-ak-tiv] / ˈsɜr fɪsˌæk tɪv /

noun

Chemistry.

  1. any substance that when dissolved in water or an aqueous solution reduces its surface tension or the interfacial tension between it and another liquid.

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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