metacercaria

metacercaria
The post-cercarial encysted stage in the life history of a fluke, prior to transfer to the definitive host. Some cercariae attach themselves to grass or other vegetation, form m., and later are ingested by herbivores, as in Fasciola and similar forms; others encyst in muscles of fish, as in Clonorchis, or in crayfish, as in Paragonimus. [meta- + G. kerkos, tail]

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meta·cer·car·ia .met-ə-(.)sər-'kar-ē-ə, -'ker- n, pl -i·ae -ē-.ē a tailless encysted late larva of a digenetic trematode that is usu. the form which is infective for the definitive host
meta·cer·car·i·al -ē-əl adj

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n. (pl. metacercariae)
a mature form of the cercaria larva of a fluke. Liver fluke metacercariae are enveloped by thin cysts and develop on various kinds of vegetation.

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meta·cer·ca·ria (met″ə-sər-karґe-ə) pl. metacercaґriae. The encysted resting or maturing stage of a trematode parasite in the tissues of an intermediate host (mollusks, aquatic arthropods, fishes, or amphibia) or on vegetation; in some cases these are the infective or transfer stage of parasites.

Medical dictionary. 2011.

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Look at other dictionaries:

  • metacercaria — noun Etymology: New Latin Date: 1925 a tailless encysted late larva of a digenetic trematode that is usually the form which is infective for the definitive host • metacercarial adjective …   New Collegiate Dictionary

  • metacercaria — n. [Gr. meta, after; keros, tail] (PLATYHELMINTHES: Trematoda) The stage succeeding the cercarial, following loss of tail; it may invade the definitive host (blood flukes) or may become encysted and await passive transfer to that host …   Dictionary of invertebrate zoology

  • metacercaria — /met euh seuhr kair ee euh/, n. pl. metacercariae / kair ee ee /. Zool. the encysted larva of a trematode, usually found in or on an aquatic intermediate host. Cf. cercaria. [1925 30; < NL; see META , CERCARIA] * * * …   Universalium

  • metacercaria — meta·cercaria …   English syllables

  • metacercaria — n.; pl. metacercariae a mature form of the cercaria larva of a fluke. Liver fluke metacercariae are enveloped by thin cysts and develop on various kinds of vegetation …   The new mediacal dictionary

  • metacercaria — | ̷ ̷ ̷ ̷+ noun Etymology: New Latin, from meta + cercaria : a late larva of a digenetic trematode that is tailless and encysted and usually constitutes the form which is infective for the definitive host compare adolescaria, cercaria, marita …   Useful english dictionary

  • Метацеркарий (Metacercaria, Множ. Metacercariae) — стадия развития зрелой личинки трематод, возникающая после церкария. Метацеркарии печеночных трематод находятся внутри тонких цист и могут существовать в них на различных этапах своего развития. Источник: Медицинский словарь …   Медицинские термины

  • МЕТАЦЕРКАРИЙ — (metacercaria, множ. metacercariae) стадия развития зрелой личинки трематод, возникающая после церкария. Метацеркарии печеночных трематод находятся внутри тонких цист и могут существовать в них на различных этапах своего развития …   Толковый словарь по медицине

  • Clonorchis sinensis — under a light microscope. Notice the ovaries. This species is monoecious, Scientific classification …   Wikipedia

  • Fasciola hepatica — Saltar a navegación, búsqueda ? Fasciola hepatica Fasciola hepatica gusano adulto …   Wikipedia Español

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