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English definition of “antidote”

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antidote

noun [C]  /ˈænt·ɪˌdoʊt/ us  
a chemical, esp. a drug, that acts against the bad effects of a poison to limit the harm it can do: an antidote for snake venom fig. An antidote is also a way of preventing or acting against something bad: Exercise can be an antidote to depression.
(Definition of antidote from the Cambridge Academic Content Dictionary © Cambridge University Press)
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