myotonia congenita myotonia atrophica • myotonic · · · Info · Definitions · Synonyms · Characters · · myotonia congenita · · Text Common · · Latin · · Scripts 18 · · Length 9 · · Syllables Definitions · · · (noun) a mild, rare, congenital form of myotonia characterized by muscle stiffness. Synonyms: myotonia congenita, Thomsen's disease. · · Noun Definition 1 Synonyms · · · thomsen's disease · · Synonym 1 Characters · · space U+0020 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 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074 y latin small letter y U+0079