The first stage in the aquatic life cycle of certain tapeworms, such as the pseudophyllideans (family Diphyllobothriidae), following ingestion of the newly hatched larva (coracidium) by a copepod (water flea). The p. develops into a tailed larva in the body cavity of the crustacean first intermediate host; when the p. and its host are ingested by a fish, the p. enters the new host's tissues and becomes a plerocercoid. SEE ALSO: Diphyllobothrium latum, Pseudophyllidea. [pro- + G. kerkos, tail, + eidos, resemblance]

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pro·cer·coid (')prō-'sər-.kȯid n the solid first parasitic larva of some tapeworms that develops usu. in the body cavity of a copepod

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pro·cer·coid (pro-surґkoid) one of the larval stages of fish tapeworms.

Medical dictionary. 2011.

Look at other dictionaries:

  • Procercoid — Procercoid, eine der Larvenformen der ⇒ Cestoda (Bandwürmer) …   Deutsch wörterbuch der biologie

  • procercoid — n. [Gr. pro, before; kerkos, tail; eidos, like] (PLATYHELMINTHES: Cestoda) The metacestode developing from the oncosphere, containing a body proper and caudal vestige of the oncosphere, the cercomere; see neotenic procercoid …   Dictionary of invertebrate zoology

  • procercoid — noun Etymology: pro + Greek kerkos tail Date: 1918 the solid first parasitic larva of some tapeworms that develops usually in the body cavity of a copepod …   New Collegiate Dictionary

  • procercoid — /proh serr koyd/, n. Zool. an elongate larval stage of some tapeworms that usually develops in the body of a freshwater copepod. Cf. plerocercoid. [1925 30; PRO 2 + Gk kérk(os) tail + OID] * * * …   Universalium

  • procercoid — pro·cer·coid …   English syllables

  • procercoid — (ˈ)prō|sərˌkȯid noun ( s) Etymology: pro (I) + cerc + oid : the solid first parasitic larva of pseudophyllidean and some other tapeworms that develops usually in the body cavity of a copepod compare plerocercoid …   Useful english dictionary

  • neotenic procercoid — (PLATYHELMINTHES: Cestoda) In Caryophyllidea, adult Archigetes that reaches sexual maturity complete with cercomer …   Dictionary of invertebrate zoology

  • Diphyllobothrium mansonoides — Scientific classification Kingdom: Animalia Phylum: Platyhelminthes Class: Cest …   Wikipedia

  • Diphyllobothrium — Proglottids of D. latum Scientific classification Kingdom: Animalia …   Wikipedia

  • cercomer — The caudal appendage of a larval cestode, the procercoid stage of pseudophyllid cestodes; it may also be found on the cysticercoid larvae of taenioid cestodes, as well as in many of the hymenolepidids ( e.g., Hymenolepis nana). This appendage… …   Medical dictionary

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