[sur-fis-ak-tiv] /ˈsɜr fɪsˌæk tɪv/
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.
noun 1. a device condensing steam or vapor by passing it over a cool surface. surface condenser noun 1. a steam condenser usually associated with a steam turbine in which the steam is condensed on the surface of tubes through which water is passed Compare jet condenser