Definitions
spark plug Tweet Definition of spark plug Like Definition of spark plug on Facebook
noun 
  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.
    • The is quite simple in theory: It forces electricity to arc across a gap, just like a bolt of lightning. The electricity must be at a very high voltage in order to travel across the gap and create a good spark. Voltage at the can be anywhere from 40,000 to 100,000 volts. http://www.auto.howstuffworks.com/ignition-system2.htm
Translations: 
  • Spanish: bují­a

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