surface-active agent surface-active • surface anatomy · · · Info · Definitions · Synonyms · Characters · · surface-active agent · · Text Common · · Latin · · Scripts 20 · · Length 6 · · Syllables Definitions · · · (noun) a chemical agent capable of reducing the surface tension of a liquid in which it is dissolved. Synonyms: wetting agent, wetter, surfactant, surface-active agent. · · Noun Definition 1 Synonyms · · · wetting agent · · Synonym 1 wetter · · Synonym 2 surfactant · · Synonym 3 Characters · · space U+0020 - hyphen-minus U+002D a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 v latin small letter v U+0076