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pentastomid

or pen·ta·stome

[pen-tuh-stoh-mid, pen-tas-tuh-mid or pen-tuh-stohm]
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noun Zoology.
  1. tongue worm.
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Origin of pentastomid

1905–10; < New Latin Pentastomida name of the class of tongue worms, equivalent to Pentastom(um) a genus name (penta- penta- + -stomum < Greek -stomon, neuter of -stomos -stomous) + -ida -ida

tongue worm

noun
  1. 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.
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Origin of tongue worm

First recorded in 1635–45
Also called pentastome, pentastomid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for pentastome

tongue worm

noun
  1. vet science a parasitic worm, Linguatula serrata, found in the nose of dogs, so called because of the shape of the worm
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

pentastome in Science

pentastome

[pĕntə-stōm′]
  1. See tongue worm.
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tongue worm

  1. Any of various small, colorless, tongue-shaped, wormlike invertebrates of the group Pentastoma, which is considered by many zoologists to be a phylum intermediate in evolutionary development between the annelids and arthropods. Tongue worms are parasites that live embedded in the respiratory systems of vertebrates, especially reptiles and also humans, in tropical regions. They have simple nervous and digestive systems but lack circulatory and respiratory systems. Also called pentastome
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.