Spark plug

noun

Word Frequency: 0.6

Definitions

1.nounThe 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.nounSomeone who is a driving force in new endeavours.

Synonyms

catalyst instigator mover and shaker stimulus straw that stirs the drink plug sparking plug glow plug sparke sparker sparkler sparklet

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