lightning rod
lightning conductor

Whether the lightning conductors were used for the treatment of the patients has not been clarified.

A lightning conductor to the top of the balloon might be desirable.

The top of the magazine was protected by a lightning conductor.

It was as if he were a lightning conductor earthing a charge.

A lightning conductor would be very serviceable to us at present.

Shaw perhaps more than any other recent artist has become a lightning conductor for a debate about what art should look like.

"A huge piece of metal sculpture could act as a lightning conductor, and must be grounded," he said.

Benjamin Franklin was asked for advice on the design of a lightning conductor.

It was through his means that lightning conductors were first introduced into Italy for the protection of buildings.

The nacelle is protected by a lightning conductor, often copper.