pentastomid

pentastomid
/pen'teuh stoh"mid/, n. Zool.
See tongue worm.
[1905-10; < NL Pentastomida name of the class of tongue worms, equiv. to Pentastom(um) a genus name (penta- PENTA- + -stomum < Gk -stomon, neut. of -stomos -STOMOUS) + -ida -IDA]

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      any of about 100 species of tiny parasites (parasitism) belonging to the Pentastomida, now generally considered a subclass of the phylum Arthropoda. Pentastomids range from a few millimetres to 14 cm (about 6 inches) in length and lack respiratory, circulatory, and excretory organs.

      Pentastomids live in the respiratory systems of vertebrate hosts. Although they are mostly tropical or subtropical, those with homoiothermic (warm-blooded) hosts may also be found in cold regions. Reptiles are the most common victims of pentastomid infestation. Porocephalus is parasitic in snakes and rodents. Lingulata species parasitize various mammals, including dogs. A few species are of medical interest because they infest humans.

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Universalium. 2010.

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  • pentastomid — pen·ta·sto·mid (pen″tə stoґmid) pentastome …   Medical dictionary

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  • pentastomid — noun wormlike arthropod having two pairs of hooks at the sides of the mouth; parasitic in nasal sinuses of mammals • Syn: ↑tongue worm • Hypernyms: ↑arthropod • Member Holonyms: ↑Pentastomida, ↑subphylum Pentastomida …   Useful english dictionary

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  • tongue worm. — Also called pentastomid. any wormlike invertebrate of the phylum Pentastomida (or subphylum of Arthropoda), having two pairs of hooks at the sides of the mouth: all are parasitic, some in the respiratory tracts of mammals. [1635 45] * * * …   Universalium

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  • halzoun — Local name of a buccopharyngeal infection occurring in Lebanon, probably caused by pentastomid larvae of the dog tongue worm, Linguatula serrata, which wander into the throat of the human host after ingestion of infected raw sheep, or goat liver… …   Medical dictionary

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