- A cable or rod built of metal that protects a building from lightning by providing a direct link to ground. See also lightning rod.
- A system consisting of a lightning rod, a conductor capable of withstanding the current of a lightning discharge, and a ground rod. A lightning conductor does not prevent the occurrence of a lightning discharge, but when properly designed helps ensure that the energy released is safely channeled into the earth. Also called lightning rod.
- The conductor utilized in a lightning conductor (1).
- synonymlightning rod