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New American Oxford Dictionary

surfactant

sur fac tant |sərˈfaktənt sərˈfæktənt | ▶noun a substance that tends to reduce the surface tension of a liquid in which it is dissolved. ORIGIN 1950s: from surf (ace )-act (ive ) + -ant .

 

Oxford Dictionary

surfactant

surfactant |səˈfakt (ə )nt | ▶noun a substance which tends to reduce the surface tension of a liquid in which it is dissolved. ORIGIN 1950s: from surf (ace )-act (ive ) + -ant .