lightning rod

American  

noun

1. a rodlike conductor installed to divert lightning away from a structure by providing a direct path to the ground.

2. a person or thing that attracts and absorbs powerful and especially negative or hostile feelings, opinions, etc., thereby diverting such feelings from other targets.

   The unpopular supervisor served as a lightning rod for the criticism that should have been aimed at management.

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lightning rod Scientific  

1. A grounded metal rod placed high on a structure to conduct electrical current from a lightning strike directly to the ground, preventing the currents from injuring people or animals or from damaging objects. Lightning rods usually have a sharp, pointed tip, since electric lines of force are more highly concentrated around pointed objects, in this case increasing the attractiveness of the rod compared with other nearby objects.

2. See also Saint Elmo's fire

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Etymology

Origin of lightning rod

An Americanism dating back to 1780–90

Example Sentences

The ending, which I won’t spoil here, has become a lightning rod of controversy that cannot be destroyed, no matter how much acrimonious electricity it attracts.

From Salon • Feb. 23, 2026

As prime minister, Oli became a lightning rod for protester fury.

From Barron's • Feb. 16, 2026

Since the startup Anthropic launched Claude for Financial Services last summer, “LSEG shares have been a lightning rod for market fears about AI disruption risk,” Jefferies analyst Tom Mills wrote in a note last week.

From The Wall Street Journal • Feb. 11, 2026

Then there are the conversations about uncomfortable, and sometimes controversial, subjects that contestants have delved into too - in some cases a lightning rod for national discussions.

From BBC • Jul. 25, 2025

Chase began to get a strange feeling about Emily and wondered if this was what his dad experienced when he made his predictions, or what a lightning rod felt just before a strike.

From "Storm Runners" by Roland Smith