heterotheca heterothallism • heterotheca villosa · · · Info · Definitions · Characters · · heterotheca · · Text Latin · · Script 11 · · Length 5 · · Syllables Definitions · · · (noun) genus of yellow-flowered North American herbs. Synonyms: Heterotheca, genus Heterotheca. · · Noun Definition 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 o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074