Onosmodium Onopordon • onrush · · · Info · Definitions · Characters · · Onosmodium · · Text Latin · · Script 10 · · Length Definitions · · · (noun) a genus of North American perennial herbs of the family Boraginaceae. Synonyms: genus Onosmodium. · · Noun Definition 1 Characters · · O latin capital letter o U+004F d latin small letter d U+0064 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 u latin small letter u U+0075