parasitosis

noun

par·​a·​sit·​o·​sis ˌper-ə-sə-ˈtō-səs How to pronounce parasitosis (audio)
-ˌsī-
ˌpa-rə-
: infestation with or disease caused by parasites

Examples of parasitosis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Patients with dermatological parasitosis have delusions that insects are walking on or crawling through their skin. Amy Barth, Discover Magazine, 14 Nov. 2019 Compassion avoids angering or insulting someone with delusional parasitosis. Korin Miller, Health, 17 Nov. 2023 Satoskar says the inaccurate information that influencers are sharing about parasites might encourage people, including those with delusional parasitosis, to make risky health decisions. Sarah Boden, NPR, 16 Mar. 2026

Word History

Etymology

New Latin

First Known Use

circa 1899, in the meaning defined above

Time Traveler
The first known use of parasitosis was circa 1899

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Cite this Entry

“Parasitosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/parasitosis. Accessed 7 Jul. 2026.

Medical Definition

: infestation with or disease caused by parasites
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