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Spark plug

The part of an internal combustion engine which forms a high-voltage electric spark which ignites the fuel-air mixture to begin the power stroke.

📖 Definitions of "Spark plug"

noun
  1. 1

    The part of an internal combustion engine which forms a high-voltage electric spark which ignites the fuel-air mixture to begin the power stroke.

  2. 2

    Someone who is a driving force in new endeavours.

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