capillary action capillary • capillary analysis · · · Info · Definitions · Synonyms · Characters · · capillary action · · Text Common · · Latin · · Scripts 16 · · Length 6 · · Syllables Definitions · · · (noun) a phenomenon associated with surface tension and resulting in the elevation or depression of liquids in capillaries. Synonyms: capillarity, capillary action. · · Noun Definition 1 Synonyms · · · capillarity · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079