Added 10 October 2026 surface-active adjective Categories: Describing WordsObscure Words adjective ! Definition from Wiktionary (CC BY-SA). More about surface-active at Wordnik → Where our words come from → capable of lowering the surface tension of a liquid Related Words: activesurfaceacreagesuperantiwettingsedimentableantifoamingdissolventwhettedemulsifyingdetersivemicroemulsifyingliquidogenous Back to today's word