Xanthium Xanthisma • Xanthocephalus · · · Info · Definitions · Characters · · Xanthium · · Text Latin · · Script 8 · · Length 3 · · Syllables Definitions · · · (noun) coarse herbs having small heads of greenish flowers followed by burrs with hooked bristles. Synonyms: genus Xanthium. · · Noun Definition 1 Characters · · X latin capital letter x U+0058 a latin small letter a U+0061 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 t latin small letter t U+0074 u latin small letter u U+0075