a 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.
Why Is Thursday Named For a Comic Book Character?Maybe you've read the comic books or seen some of the Marvel movies that feature a big blond guy named Thor, founding member of the Avengers and brother of Loki. But, Thursday is a bigger tribute to the Norse god of thunder than any movie or comic book upon which it's based. After all, it is “Thor’s day.”
Origin of lightning arrester
First recorded in 1855–60
Also called arrester.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for lightning arrester
Inspect for contact of lightning-arrester carbons: a piece of writing-paper should pass between them easily.The Gunner's Examiner|Harold E. Cloke
British Dictionary definitions for lightning arrester
a device that protects electrical equipment, such as an aerial, from an excessive voltage resulting from a lightning discharge or other accidental electric surge, by discharging it to earth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012