methacholine meth • methacrylate · · · Info · Definitions · Synonyms · Characters · · methacholine · · Text Latin · · Script 12 · · Length 4 · · Syllables Definitions · · · (noun) parasympathomimetic drug (trademark Mecholyl) that stimulates secretions and smooth muscle activity. Synonyms: Mecholyl. · · Noun Definition 1 Synonyms · · · mecholyl · · Synonym 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 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 t latin small letter t U+0074