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English Lexicon

Parasitism

/ˈpær.əˌsɪz.əm/
nounCEFR C1 (Advanced)Top #14200 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A relationship between two organisms in which one organism benefits at the expense of the other.

    "The tapeworm exhibits parasitism by living in the intestines of its host and absorbing nutrients."
  2. 2

    The condition of being a parasite or the practice of exploiting others.

    "The parasitism observed in some social insects can lead to the decline of their host populations."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Greek word 'parasitos' (one who eats at the table of another), passing through Latin 'parasitus' and French 'parasitisme'. By the 19th century, the term expanded from its original biological context describing organisms living on or in a host to also encompass sociological and economic relationships.

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