air gap

  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.

Origin of air gap

First recorded in 1895–1900

Words Nearby air gap Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use air gap in a sentence

  • Our terrestrial voltages are baffled by an air-gap of a few inches, but lightning springs across a gap miles wide.