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spark plug is a noun meaning "electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark". It carries one recorded sense.
electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
Definitions, synonyms and semantic relations for spark plug come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.