pyrrophyta pyrrophyllin • pyrroporphyrin · · · Info · Definitions · Characters · · pyrrophyta · · Text Latin · · Script 10 · · Length 4 · · Syllables Definitions · · · (noun) a division of lower plants comprising unicellular and biflagellate algae that form starchy compounds. Synonyms: Pyrrophyta, phylum Pyrrophyta. · · Noun Definition 1 Characters · · a latin small letter a U+0061 h latin small letter h U+0068 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 y latin small letter y U+0079