coccidium

Common name given to protozoan parasites (order Eucoccidiida) in which schizogony occurs within epithelial cells, generally in the intestine, but in some species in the bile ducts and kidney; the final product of sexual fusion and differentiation that occurs within the host, the oocyst, generally passes to the soil in the feces, undergoes sporulation, and then acts as the infective form for another host. Coccidia are parasitic in most domestic and wild birds and mammals, occasionally in humans, and are highly host-specific; the majority are nonpathogenic, but certain species rank among the most serious and economically important pathogens, causing coccidiosis in birds and mammals. See Isospora, Cryptosporidium. [Mod. L. dim. of G. kokkos, berry]

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coc·cid·i·um (kok-sidґe-əm) pl. coccidґia. Any protozoan of the subclass Coccidia.

Medical dictionary. 2011.

Look at other dictionaries:

  • coccidium — n.; pl. {coccidia}. (Microbiol.) any sporozoan of the order {Coccidia}, parasitic on the digestive epithelium of vertebrates and higher invertebrates. It is the causative agent of coccidiosis, which can be a problem in poultry rearing. [WordNet 1 …   The Collaborative International Dictionary of English

  • Coccidĭŭm — Leuck., Gattung der Sporozoen (s.d.), im Jugendzustand hüllenlose, ovale oder kugelige Zellen, die in Epithelzellen verschiedener Organe bei Wirbeltieren, Mollusken und Gliedertieren schmarotzen und für ihre Träger oft recht gefährlich sind, da… …   Meyers Großes Konversations-Lexikon

  • Coccidium — Coccidĭum, eine den Gregarinen nahestehende Ordnung der Urtiere, lebt parasitisch in Geweben anderer Tiere, so C. oriforma Leuck. in den Epithelzellen der Gallengänge und C. perforans Leuck. in denen des Darms des Kaninchens, auch des Menschen. – …   Kleines Konversations-Lexikon

  • Coccidium — vgl. Kokzidie …   Das Wörterbuch medizinischer Fachausdrücke

  • coccidium — /kok sid ee euhm/, n., pl. coccidia / sid ee euh/. Microbiol. any sporozoan of the order Coccidia, often parasitic in the digestive tracts of certain animals and a cause of coccidiosis. [ < NL Coccidium, orig. a genus name; see COCCUS, IDIUM] * * …   Universalium

  • coccidium — noun (plural coccidia) Etymology: New Latin, diminutive of coccus Date: circa 1879 any of an order (Coccidia) of protozoans usually parasitic in the digestive epithelium of vertebrates …   New Collegiate Dictionary

  • coccidium — coc·cid·i·um …   English syllables

  • coccidium — noun parasitic on the digestive epithelium of vertebrates and higher invertebrates • Syn: ↑eimeria • Hypernyms: ↑sporozoan • Member Holonyms: ↑Coccidia, ↑order Coccidia …   Useful english dictionary

  • coccidia — coccidium coccidium n.; pl. {coccidia}. (Microbiol.) any sporozoan of the order {Coccidia}, parasitic on the digestive epithelium of vertebrates and higher invertebrates. It is the causative agent of coccidiosis, which can be a problem in poultry …   The Collaborative International Dictionary of English

  • coccidiosis — /kok sid ee oh sis/, n. Vet. Pathol. any of a series of specific infectious diseases caused by epithelial protozoan parasites, which may affect the intestines of birds, domestic animals, or dogs. [1890 95; < NL Coccidi(a) (see COCCIDIUM) + OSIS]… …   Universalium

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