English Lexicon

Parasite

/ˈpær.ə.saɪt/
nounCEFR B2 (Upper)Top #8500 frequency
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Comprehensive Definitions & Senses

1 sense
As noun
  1. 1

    An organism that lives in or on another organism of another species and benefits by deriving nutrients at the other's expense.

    "Fleas and ticks are common parasites that affect domestic animals."

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Synonyms (2)

Linguistic Origin & Historical Etymology

Derived from the ancient Greek parasitos, meaning 'one who eats at the table of another' (para- 'beside' + sitos 'grain, food'). Originally referring to a person who hung about the rich by flattery to gain free meals, the term shifted in the 16th century via New Latin into biological science to describe organisms living in or on other living organisms.

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