oocyst

oocyst
/oh"euh sist'/, n. Biol.
the encysted zygotic stage in the life cycle of some sporozoans.
[1870-75; OO- + -CYST]

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Universalium. 2010.

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  • oocyst — The encysted form of the fertilized macrogamete, or zygote, in coccidian Sporozoea in which sporogonic multiplication occurs; results in the formation of sporozoites, infectious agents for the next stage of the sporozoan life cycle. [G. oon, egg …   Medical dictionary

  • oocyst — n. a spherical structure, 50–60 μm in diameter, that develops from the zygote (see ookinete) of the malarial parasite (Plasmodium) on the outer wall of the mosquito s stomach. The oocyst steadily grows in size and its contents divide repeatedly… …   The new mediacal dictionary

  • Oocyst — An oocyst is the spore phase of certain protists, such as Cryptosporidium and Toxoplasma . This state can survive for lengthy periods outside a host and is very resistant.A thick walled structure in which sporozoan zygotes develop and that serves …   Wikipedia

  • oocyst — noun Etymology: International Scientific Vocabulary Date: 1875 zygote; specifically a sporozoan zygote undergoing sporogenous development …   New Collegiate Dictionary

  • oocyst — n. [Gr. oion, egg; kystis, pouch] The cystic form in the parasitic protozoans (Apicomplexa), resulting from sporogony; may be hard covered, with a resistant membrane (Eimera) or be naked (Plasmodium) …   Dictionary of invertebrate zoology

  • oocyst — (o o sist) Cyst formed around a zygote of malaria and related protozoa …   Dictionary of microbiology

  • oocyst — noun A thick walled structure under a mosquitos outer gut lining, formed by an ookinete …   Wiktionary

  • oocyst — oo·cyst …   English syllables

  • oocyst — o•o•cyst [[t]ˈoʊ əˌsɪst[/t]] n. mcr the encysted zygotic stage in the life cycle of some sporozoans • Etymology: 1870–75 …   From formal English to slang

  • oocyst — ˈōəˌsist noun Etymology: International Scientific Vocabulary o + cyst : zygote; specifically : a sporozoan zygote undergoing sporogenous development …   Useful english dictionary

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