pin·​worm | \ ˈpin-ˌwərm How to pronounce pinworm (audio) \

Definition of pinworm

1 : any of numerous small nematode worms (family Oxyuridae) that infest the intestines and especially the cecum of various vertebrates especially : a worm (Enterobius vermicularis) parasitic in humans
2 : any of several rather slender insect larvae that burrow in plant tissue

Examples of pinworm in a Sentence

Recent Examples on the Web

Luckily, pinworm infections don't usually lead to any complications. Samantha Lauriello,, "Pinworms Were Living In This Woman’s Anus for Months—Here’s What That Means," 3 July 2019 When the pinworms returned a while later, the doctor prescribed albendazole, a prescription treatment that has been around for decades. New York Times, "The Price They Pay," 5 Mar. 2018 Treatment involves oral drugs that kill the pinworms and thorough washing of bedding and underwear. Lisa Gutierrez, kansascity, "Kristen Bell got anal worms from her 3-year-old daughter. It can happen to you | The Kansas City Star," 2 Mar. 2018 Pests monitored: Pheromone lures are available for diamondback moths and moths that produce armyworms, cabbage loopers, corn earworms, European corn borers, tomato pinworms, and cutworms. The Editors Of Organic Life, Good Housekeeping, "The 7 Best Organic Pest Control Techniques For Your Garden," 18 Dec. 2017 Further testing showed that all four had anti-cancer effects, but one in particular, pyrvinium pamoate, which is approved for the treatment of pinworms, significantly reduced the growth of liver-cancer tumors in laboratory mice. Aimee Swartz, Washington Post, "Viagra and many other drugs were discovered by chance. Now science is hoping to change that.," 13 May 2018 The lab mice would pick up whatever the pet-shop mouse was carrying—everything from fur mites and pinworms to mouse hepatitis—and perhaps become immunologically more like the pet-shop mouse. Cassandra Willyard, Scientific American, "Squeaky Clean Mice Could be Ruining Research," 9 Apr. 2018 As Bell notes, most people with pinworms don't have any symptoms, but that doesn't mean the worms aren't busy. Melissa Minton, SELF, "Kristen Bell Caught Anal Worms From Her Daughter and It Sounds Horrible," 27 Feb. 2018 Here's the really scary bit: Bell then subsequently contracted them herself since pinworms can live on surfaces like clothing, bedding or carpets, according to the Mayo Clinic. USA TODAY, "And the envelope please...Can Jordan Peele's 'Get Out' shake up the Oscars?," 1 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pinworm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pinworm

1846, in the meaning defined at sense 1

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pin wire


pin wrench



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Last Updated

13 Jul 2019

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The first known use of pinworm was in 1846

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pin·​worm | \ ˈpin-ˌwərm How to pronounce pinworm (audio) \

Medical Definition of pinworm

: any of numerous small nematode worms of the family Oxyuridae that have the tail of the female prolonged into a sharp point and infest the intestines and especially the cecum of various vertebrates especially : a worm of the genus Enterobius (E. vermicularis) that is parasitic in humans

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More from Merriam-Webster on pinworm

Rhyming Dictionary: Words that rhyme with pinworm

Spanish Central: Translation of pinworm

Nglish: Translation of pinworm for Spanish Speakers Encyclopedia article about pinworm

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