backflow backflash • backfold · · · Info · Definitions · Synonyms · Characters · · backflow · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a flow that returns toward its source. Synonyms: backflowing. · · Noun Definition 1 Synonyms · · · backflowing · · Synonym 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 f latin small letter f U+0066 k latin small letter k U+006B l latin small letter l U+006C o latin small letter o U+006F w latin small letter w U+0077