polymyxin polymythy • polynaphthene · · · Info · Definitions · Characters · · polymyxin · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) any of several toxic antibiotics obtained from a particular soil bacterium. · · Noun Definition 1 Characters · · 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 p latin small letter p U+0070 x latin small letter x U+0078 y latin small letter y U+0079