air gap

American  

noun

1. Electricity. the space between two objects magnetically related, as between the rotor and the stator in a dynamo, or between two objects electrically related, as between the electrode and the tip of a spark plug.

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Etymology

Origin of air gap

First recorded in 1895–1900

Example Sentences

An air gap is a security measure used to isolate multiple systems from linking, such as a computer connecting to WiFi.

From Washington Times • Dec. 12, 2023

“I swear there was only a foot of air gap left in the back part of her car,” he said.

From Seattle Times • Mar. 24, 2023

Its fire resistance comes from a two-layer construction, with an air gap in between for added insulation.

From Scientific American • Jul. 25, 2022

Removing the existing drywall would increase the depth of the air gap between the units, and adding two layers of thick drywall would boost the mass, he said.

From Washington Post • Jun. 20, 2022

An electric pressure is induced in the secondary circuit, but of not enough intensity to cause a spark to jump across the air gap.

From Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications by Hawkins, Nehemiah