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Any of various small nematode worms of the order Oxyurida that are parasitic in vertebrates and certain invertebrates, especially Enterobius vermicularis, a species that infests the human intestines. Also called threadworm.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Animals) a parasitic nematode worm, Enterobius vermicularis, infecting the colon, rectum, and anus of humans: family Oxyuridae. Also called: threadworm
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



a small nematode worm, Enterobius vermicularis, infesting the intestine and migrating to the anus, esp. in children.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pinworm - small threadlike worm infesting human intestines and rectum especially in childrenpinworm - small threadlike worm infesting human intestines and rectum especially in children
nematode, nematode worm, roundworm - unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic
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n oxiuro, pequeña lombriz blanca que afecta en particular a los niños
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
NEW YORK -- Pinworm is the most common intestinal parasite in the United States, and it is active year-round, especially in areas with a warm, moist climate.
Risk factors for urinary tract infection include female gender, uncircumcised male, vesicoureteral reflux, poor toilet training, voiding dysfunction, obstructive uropathy, urethral instrumentation, wiping from back to front in girls, bubble bath, tight clothing (Underwear), pinworm infestation, constipation, sexually activity, neuropathy bladder, anatomic abnormality (Labial adhesion), bacteria with P fimbriae and under nutrition.
The South American tomato pinworm (Tuta absoluta) and the leaf miner (Liriomyza spp.) are important pests of tomato cultivated in Brazil (Maciel et al., 2011; Guimaraes et al., 2015).
The invasive South American tomato pinworm, Tuta absoluta, continues to spread in Afro-Eurasia and beyond: the new threat to tomato world production.
They identified carriers of organisms causing such diseases as diarrhoea, dysentery, cholera, typhoid fever and worms like pinworm, hookworm and roundworm.
A roadkilled black howler monkey recently became the first male of its species in Mexico confirmed with a pinworm called Trypanoxyuris pigrae.
A meeting of the same committee on March 14 said there were problems with animals being affected by pinworm - which causes anal itching in humans.
Pinworm infection (Enterobius vermicularis) was assessed by the presence of perianal itching and parental observation of passing thread like worms in the night.
Cowie, "Pinworm infestation of the appendix," British Journal of Surgery, vol.
The control of infections in locally bred mice is of paramount importance since some parasites such as pinworm in the founders can be easily passed onto their progeny and are hard to eradicate even under specific pathogen-free conditions (