• WordNet 3.6
    • n Dinoflagellata in some classifications considered a phylum of the kingdom Protista; in others included in the plant phylum Pyrrophyta
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Century Dictionary and Cyclopedia
    • dinoflagellata Those flagellate infusorians commonly called Cilioflagellata (which see). The name was given because the structure before regarded as a girdle of cilia seemed to be a second flagellum lying in the transverse groove which nearly all these infusorians possess in addition to the longitudinal one. The Dinoflagellata are named as a class, and divided into Adinida and Dinifera. Bütschli.
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