Definition of poison noun from the Oxford Advanced American Dictionary

      

    poison

     noun
    noun
    NAmE//ˈpɔɪzn//
     
    [countable, uncountable]
     
    jump to other results
  1. 1a substance that causes death or harm if it is swallowed or absorbed into the body Some mushrooms contain a deadly poison. How did he die? Was it poison? The dog was killed by rat poison (= poison intended to kill rats ). to hunt with poison arrows bombs containing poison gas
  2. 2an idea, a feeling, etc. that is extremely harmful the poison of racial hatred
  3. Idioms
    one man's meat is another man's poison(saying)
     
    jump to other results
    used to say that different people like different things; what one person likes very much, another person does not like at all
    what's your poison?(informal)(humorous)
     
    jump to other results
    used to ask someone what alcoholic drink they would like
See the Oxford Advanced Learner's Dictionary entry: poison