lightning arrester

noun

1. 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.

lightning arrester

noun

1. 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

Word History and Origins

Origin of lightning arrester¹

First recorded in 1855–60

Example Sentences

The fault was found in a lightning arrester which one of the operators had neglected in the cable hut.

From Project Gutenberg

Incidentally, radio antennae should be properly grounded and have an approved lightning arrester.

From Project Gutenberg

One of the most important features in the erection of a lightning arrester is its connection to earth.

From Project Gutenberg

Inspect for contact of lightning-arrester carbons: a piece of writing-paper should pass between them easily.

From Project Gutenberg

Don't fail to use a lightning arrester, or better, a lightning switch, for your receiving set.

From Project Gutenberg