American English

Definition of lightning rod noun from the Oxford Advanced American Dictionary

     

    lightning rod

     noun
    noun
     
     
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  1. 1a long straight piece of metal or wire leading from the highest part of a building to the ground, put there to prevent lightning from damaging the building
  2. 2a person or thing that attracts criticism, especially if the criticism is then not directed at someone or something else
See the Oxford Advanced Learner's Dictionary entry: lightning rod