WordReference Random House Unabridged Dictionary of American English © 2025
light′ning arrest′er,
- Electricitya device for preventing damage to radio, telephonic, or other electric equipment from lightning or other high-voltage currents, using spark gaps to carry the current to the ground without passing through the device. Also called arrester.
- 1855–60
'lightning arrester' also found in these entries (note: many are not synonyms or translations):