Zygnemataceae Zygnemales • zygnemataceous · · · Info · Definitions · Characters · · Zygnemataceae · · Text Latin · · Script 13 · · Length Definitions · · · (noun) pond scums: common freshwater algae forming green slimy masses. Synonyms: family Zygnemataceae. · · Noun Definition 1 Characters · · Z latin capital letter z U+005A a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 m latin small letter m U+006D n latin small letter n U+006E t latin small letter t U+0074 y latin small letter y U+0079