par·​a·​sit·​o·​sis | \ ˌper-ə-sə-ˈtō-səs How to pronounce parasitosis (audio) , -ˌsī-, ˌpa-rə- \
plural parasitoses\ ˌper-​ə-​sə-​ˈtō-​ˌsēz How to pronounce parasitosis (audio) , -​ˌsī-​ , ˌpa-​rə-​ \

Definition of parasitosis

: infestation with or disease caused by parasites

Examples of parasitosis in a Sentence

Recent Examples on the Web The misguided belief that one’s body is being overrun by worms also has a name: delusional parasitosis. NBC News, "On Facebook, fears of parasites push people to post pictures of feces and pursue dangerous remedies," 14 Nov. 2019 Still others may work with people who suffer from delusions involving the skin — like delusional parasitosis, in which patients vehemently insist that their skin is infected with mites or fleas or other organisms, when in reality none are present. Melissa Dahl, The Cut, "The Science of How Your Feelings Affect Your Face," 21 Aug. 2017

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

First Known Use of parasitosis

circa 1899, in the meaning defined above

History and Etymology for parasitosis

New Latin

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Time Traveler for parasitosis

Time Traveler

The first known use of parasitosis was circa 1899

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Cite this Entry

“Parasitosis.” Dictionary, Merriam-Webster, Accessed 8 Mar. 2021.

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More Definitions for parasitosis


par·​a·​sit·​o·​sis | \ -sə-ˈtō-səs How to pronounce parasitosis (audio) , -ˌsīt-ˈō- How to pronounce parasitosis (audio) \
plural parasitoses\ -​ˌsēz How to pronounce parasitosis (audio) \

Medical Definition of parasitosis

: infestation with or disease caused by parasites

Comments on parasitosis

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