Definitions

from The Century Dictionary.

  • noun An electric spark which jumps a gap in a previously open circuit: frequently used for igniting the charge in an internal-combustion engine.

Etymologies

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Examples

  • It has a float-feed carburetor, mechanical oiler, and the ignition system is the jump-spark -- the best for this style of motor.

    Tom Swift and His Motor-Boat, or, the Rivals of Lake Carlopa Victor [pseud.] Appleton

  • He overhauled the ignition system, which was the jump-spark style, cleaned the magneto and adjusted the gasoline and compression taps so that they fitted better.

    Tom Swift and His Motor-Boat, or, the Rivals of Lake Carlopa Victor [pseud.] Appleton

  • "Now in a jump-spark engine," he explained leisurely, with a knowing squint of his eyes and an uplifted explanatory forefinger: "in a jump-spark engine, gentlemen, there is a number of things to consider.

    The River and I John G. Neihardt 1927

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