effusion effusiometer • effusive · · · Info · Definitions · Synonyms · Characters · · effusion · · Text Latin · · Script 8 · · Length Definitions · · · (noun) an unrestrained expression of emotion. Synonyms: gush, outburst, blowup, ebullition. · · Noun Definition 1 (noun) flow under pressure. · · Noun Definition 2 Synonyms · · · gush · · Synonym 1 outburst · · Synonym 2 blowup · · Synonym 3 ebullition · · Synonym 4 Characters · · e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 u latin small letter u U+0075