pteridium pterideous • pteridium aquilinum · · · Info · Definitions · Characters · · pteridium · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) a genus of ferns belonging to the family Dennstaedtiaceae. Synonyms: Pteridium, genus Pteridium. · · Noun Definition 1 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D 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