bladder fern bladder disorder • bladder fucus · · · Info · Definitions · Characters · · bladder fern · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) any fern of the genus Cystopteris characterized by a hooded indusium or bladderlike membrane covering the sori. Synonyms: bladder fern. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072