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English definition of “poison”

poison

noun [C or U]     /ˈpɔɪ.zən/
B2 a substance that can make people or animals ill or kill them if they eat or drink it: The pest control officer put bowls of rat poison in the attic. Her drink had been laced with a deadly poison.Poisoning and allergy
(Definition of poison noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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