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Word of the Day Wednesday, June 10, 2026

parasitism

/ˌpærəˈsɪtɪzəm/ noun · British & US
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What does parasitism mean?

noun

The relationship between a parasite and its host, in which the parasite benefits at the expense of the host. A biological relationship in which one organism, the parasite, lives on or in another organism, the host, and feeds off it.

Example

"The parasitism of the tapeworm in the dog's digestive system caused severe health problems."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for parasitism

Antonyms of parasitism

Rhymes with parasitism

Etymologically related