American English

Definition of lightning rod noun from the Oxford Advanced American Dictionary

     

    lightning rod

     noun
    noun
     
     
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  1. 1 a 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. 2 a 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