onopordum acanthium onopordum • onosmodium · · · Info · Definitions · Synonyms · Characters · · onopordum acanthium · · Text Common · · Latin · · Scripts 19 · · Length 8 · · Syllables Definitions · · · (noun) biennial Eurasian white hairy thistle having pale purple flowers; naturalized in North America. Synonyms: cotton thistle, woolly thistle, Scotch thistle, Onopordum acanthium, Onopordon acanthium. · · Noun Definition 1 Synonyms · · · cotton thistle · · Synonym 1 woolly thistle · · Synonym 2 scotch thistle · · Synonym 3 onopordon acanthium · · Synonym 4 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 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 p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075