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