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poison
noun
1 any substance that damages tissues or causes death when injected, absorbed or swallowed by living organisms, eg arsenic and cyanide.
2 any destructive or corrupting influence a poison spreading through society .
3 chem a substance that inhibits the action of a catalyst.
4 in a nuclear reactor: a substance which absorbs neutrons and so slows down the reaction.
verb (poisoned , poisoning )
1 to harm or kill with poison.
2 to put poison into (food, etc).
3 to contaminate or pollute rivers poisoned by effluents .
4 to corrupt or pervert (someone's mind).
5 (esp poison one person against another) to influence them to be hostile.
6 to harm or spoil in an unpleasant or malicious way Jealousy poisoned their relationship .
7 colloq to infect.
8 to inhibit or stop (a chemical or nuclear reaction) by the addition of a poison.
[13c: from French puison , from Latin potio a poisonous draft, from potare to drink]
poisoner noun .
what's your poison? colloq what would you like to drink?
© Hodder Education

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