hyoscyamine hyoscine • hyoscyamus · · · Info · Definitions · Characters · · hyoscyamine · · Text Latin · · Script 11 · · Length 5 · · Syllables Definitions · · · (noun) a poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 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 s latin small letter s U+0073 y latin small letter y U+0079