| 单词 | protozoan |
| 释义 | protozoan (once / 41913 pages) adjn WORD FAMILY protozoan: protozoa, protozoans USAGE EXAMPLESSome such organisms, called protozoa, live in the intestine, but have not been as well studied as their disease-causing counterparts. Nature(Oct 11, 2016) He looked at water from a lake outside Delft and saw protozoans. National Geographic(Sep 04, 2016) Ruling party leader Jaroslaw Kaczynski, though Catholic, warned last year that migrants arriving in Europe are a danger because they carry "parasites and protozoa." US News(Jul 26, 2016) 1adj of or relating to the Protozoa Syn protozoal, protozoic 2n any of diverse minute acellular or unicellular organisms usually nonphotosynthetic Syn|Hypo|Hyper protozoon sarcodine, sarcodinian protozoa that move and capture food by forming pseudopods rhizopod, rhizopodanprotozoa characterized by a pseudopod arcellaan amoeba-like protozoan with a chitinous shell resembling an umbrella difflugiaa protozoan with an ovoid shell of cemented sand grains ciliate, ciliated protozoan, ciliophorana protozoan with a microscopic appendage extending from the surface of the cell euglenaminute single-celled green freshwater organism having a single flagella; often classed as algae flagellate, flagellate protozoan, flagellated protozoan, mastigophoran, mastigophorea usually nonphotosynthetic free-living protozoan with whiplike appendages; some are pathogens of humans and other animals plantlike flagellateunicellular organisms having many characteristics of typical algae sporozoanparasitic spore-forming protozoan actinopodprotozoa having stiff rodlike radiating pseudopods ameba, amoebanaked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion foram, foraminifermarine microorganism having a calcareous shell with openings where pseudopods protrude testaceanany of various rhizopods of the order Testacea characterized by having a shell infusorianany member of the subclass Infusoria paramecia, parameciumany member of the genus Paramecium tetrahymenarelative of the paramecium; often used in genetics research stentorany of several trumpet-shaped ciliate protozoans that are members of the genus Stentor vorticellaany of various protozoa having a transparent goblet-shaped body with a retractile stalk dinoflagellatechiefly marine protozoa having two flagella; a chief constituent of plankton Leishmania, genus Leishmaniaflagellate protozoan that causes leishmaniasis zooflagellate, zoomastigoteflagellate protozoan lacking photosynthesis and other plant-like characteristics hypermastigoteflagellate symbiotic in the intestines of e.g. termites polymastigoteflagellates with several flagella Costia necatrix, costiaa flagellate that is the cause of the frequently fatal fish disease costiasis giardiaa suspected cause of diarrhea in humans trichomonadcause of trichomoniasis in women and cattle and birds sporozoiteone of the minute active bodies into which sporozoans divide in one stage of their life cycle trophozoitea sporozoan in the active feeding stage of its life cycle merozoitea cell that arises from the asexual division of a parent sporozoan during its life cycle coccidium, eimeriaparasitic on the digestive epithelium of vertebrates and higher invertebrates gregarinevermiform protozoans parasitic in insects and other invertebrates haemosporidianminute protozoans parasitic at some stage of the life cycle in blood cells of vertebrates including many pathogens Plasmodium vivax, malaria parasite, plasmodiumparasitic protozoan of the genus Plasmodium that causes malaria in humans haemoproteidrelated to malaria parasite and having a phase in the viscera of various birds leucocytozoan, leucocytozoonparasitic in birds piroplasmminute parasite of red blood cells of mammals transmitted by a tick and causing diseases of domestic animals sarcocystidean, sarcocystieian, sarcosporidianparasite of the muscles of vertebrates haplosporidianparasite in invertebrates and lower vertebrates of no known economic importance actinomyxidianparasites of worms microsporidianparasite of arthropods and fishes that invade and destroy host cells myxosporidianmostly parasitic in fishes and including various serious pathogens protoctist any of the unicellular protists |
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