Pyrrophyta

[ pi-rof-i-tuh ]
/ pɪˈrɒf ɪ tə /

noun Biology.

a phylum in the kingdom Protista comprising the dinoflagellates and cryptomonads.

Origin of Pyrrophyta

< New Latin < Greek pyrrh(ós) red + -o- -o- + phytá, plural of phytón -phyte