Definition of spark gap
: a space between two high-potential terminals (as of an induction coil or spark plug) through which pass discharges of electricity
also
: a device having a spark gap
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“Spark gap.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spark%20gap. Accessed 30 Jun. 2022.
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Time Traveler for spark gap
The first known use of spark gap was in 1889
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