any of a class (Dinophyceae) of single-celled algae (division Chromophycota), mainly marine and often with a cellulose shell: some species are luminescent, and some cause the red tides that are extremely toxic to marine life: also classified in a class (Dinoflagellata) of protozoans
Origin of dinoflagellatefrom Modern Latin Dinoflagellata from Classical Greek dinos, rotation ( from Indo-European base an unverified form deye-, to swing, whirl from source Old Irish d?an, swift) + Modern Latin flagellum (see flagellum) + -ata, L, neuter plural of -atus: see -ate
Any of numerous minute, chiefly marine protists of the phylum Dinoflagellata, characteristically having two flagella and a cellulose covering and forming one of the chief constituents of plankton. They include bioluminescent species, photosynthetic species, and species that produce red tide.
Origin of dinoflagellateFrom New Latin Dīnoflagellāta class name Greek dīnos whirling ( from dīnein to whirl )Latin flagellum flagellum ; see flagellum .
Ancient Greek δῖνος (dinos, “whirling”) + flagellate