Spark Plug Definition
noun
An electrical device threaded into the cylinder of an internal-combustion engine to ignite the fuel mixture by producing timed sparks between electrodes.
Webster's New World
One who gives life or energy to an endeavor.
American Heritage
A person or thing that inspires, activates, or advances something.
Webster's New World
Synonyms:
Other Word Forms of Spark Plug
Noun
Singular:
spark plug
Plural:
spark-plugsSpark Plug Is Also Mentioned In
Find Similar Words
Find similar words to spark plug using the buttons below.