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English definition of “parasite”

parasite

noun [C] uk   /ˈpær.ə.saɪt/ us    /ˈper-/
an animal or plant that lives on or in another animal or plant of a different type and feeds from it: The older drugs didn't deal effectively with the malaria parasite.Plants and animals - general words disapproving a person who is lazy and lives by other people working, giving them money, etc.: Financial speculators are parasites on the national economy.Laziness and lazy peopleAvoiding action
(Definition of parasite from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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