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DictionarySeedinoflagellateDinoflagellida
Dinoflagellida[¦dī·nō‚flə′jel·ə·də] (invertebrate zoology) An order of flagellate protozoans in the class Phytamastigophorea; most members have fixed shapes determined by thick covering plates. Dinoflagellida
Dinoflagellida [di″no-flah-jel´ĭ-dah] an order of minute, plantlike, chiefly marine protozoa. They may be present in sea water in vast numbers, causing a discoloration known as red tide or red water, which may result in the death of various marine animals and fish by exhaustion of their oxygen supply. Some species secrete a powerful neurotoxin that can cause a severe toxic reaction in humans who ingest shellfish that feed on the toxin-producing organisms.Di·no·fla·gell·i·da (dī'nō-flă-jel'i-dă), An order in the phylum Sarcomastigophora characterized by the presence of two flagella so placed as to cause the organism to have a whirling motility. Its outer surface is composed of cellulose-containing plates the size and number of which vary with genus and species. It includes many dinoflagellates that can produce toxins harmful to humans and other vertebrates.Di·no·fla·gell·i·da (dī'nō-flă-jel'i-dă) An order in the phylum Sarcomastigophora characterized by the presence of two flagella so placed as to cause the organism to have a whirling motility. Its outer surface is composed of cellulose-containing plates, the size and number of which vary with genus and species. |