• enPR: poi'zən, IPA: /ˈpɔɪz(ə)n/


  1. A substance that is harmful or lethal to a living organism.
    We used a poison to kill the weeds.
  2. Something that harms a person or thing.
    Gossip is a malicious poison.
  3. (informal) A drink; liquor.
    — What's your poison?
    — I'll have a glass of whisky.
  4. (chemistry) Any substance that inhibits catalytic activity.
    • 2013, Huazhang Liu, Ammonia Synthesis Catalysts: Innovation and Practice (page 693)
      The temperature effect of poisons. The influence of poison on the catalyst can be different with the change of reaction conditions.
Synonyms Translations Verb

poison (poisons, present participle poisoning; past and past participle poisoned)

  1. (transitive) To use poison to kill or paralyse (somebody).
    The assassin poisoned the king.
  2. (transitive) To pollute; to cause to become poisonous.
    That factory is poisoning the river.
  3. (transitive) To cause to become much worse.
    Suspicion will poison their relationship.
    He poisoned the mood in the room with his non-stop criticism.
  4. (transitive) To cause (someone) to hate or to have unfair negative opinions.
    She's poisoned him against all his old friends.
  5. (chemistry) To inhibit the catalytic activity of.
  6. (transitive, computing) To place false information into (a cache) as part of an exploit.
    • 2013, Ronald L. Mendell, Investigating Information-based Crimes (page 93)
      In this technique, the hacker poisons the cache to launch malware into Web pages.
Synonyms Translations Translations
  • Russian: отравля́ть
  • Russian: отравля́ть

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