spark gap: Meaning and Definition of

spark' gap"

Pronunciation: [key]
— Elect. Elect.
  1. a space between two electrodes, across which a discharge of electricity may take place.
  2. the electrodes and the space between, considered as a unit: used in ignition systems.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.