myoclonus myoclonic • myoclonus epilepsy · · · Info · Definitions · Characters · · myoclonus · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) a clonic spasm of a muscle or muscle group. · · Noun Definition 1 Characters · · c latin small letter c U+0063 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 u latin small letter u U+0075 y latin small letter y U+0079