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(of a substance, esp a detergent) capable of lowering the surface tension of a liquid, usually water See also surfactant

surface-active adj.
Of, relating to, or being a substance capable of reducing the surface tension of a liquid in which it is dissolved. Used especially of detergents.


Read Also:

  • Surface-active agent

    [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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    surface analgesia n. See topical anesthesia.

  • Surface anatomy

    surface anatomy n. The study of the configuration of the surface of the body, especially in relation to its internal parts.

  • Surface-boundary-layer

    noun, Meteorology. 1. the thin layer of air adjacent to the earth’s surface, usually considered to be less than 300 feet (91 meters) high.

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