lightning conductor
noun🔊/ˈlaɪtnɪŋ kəndʌktə(r)/
🔊/ˈlaɪtnɪŋ kəndʌktər/
(British English) (also lightning rod especially in North American English)
a long straight piece of metal or wire leading from the highest part of a building to the ground, put there to prevent lightning damaging the building 避雷针 a person or thing that attracts criticism, especially if the criticism is then not directed at somebody/something else 引火烧身的人（或事）