pond scum pond pine • pond-scum parasite · · · Info · Definitions · Characters · · pond scum · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) free-floating freshwater green algae. Synonyms: pond scum. · · Noun Definition 1 Characters · · space U+0020 c latin small letter c U+0063 d latin small letter d U+0064 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 u latin small letter u U+0075