sisyridae sisyphus • sisyrinchium · · · Info · Definitions · Characters · · sisyridae · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) an arthropod family of the order Neuroptera that includes spongeflies. Synonyms: Sisyridae, family Sisyridae. · · Noun Definition 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 r latin small letter r U+0072 s latin small letter s U+0073 y latin small letter y U+0079