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English definition of “lightning conductor”

lightning conductor

noun [C]     UK (US lightning rod)
a strip of metal , going from the highest point of a building to the ground , that prevents lightning from damaging the building by taking the electricity to the ground before it can reach a dangerous level Poles, rods, shafts and sticks
(Definition of lightning conductor noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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