spark plug

Noun
Synonyms: spark plugsparking plugplug

WordNet 3.0

Noun (1)

  1. electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric sparkSynonyms: spark plugsparking plugplug
Advertisement

Webster's Dictionary (GCIDE)

Spark plug \Spark plug\ In internal-combustion engines with electric ignition, a plug, screwed into the cylinder head, connected with the induction coil or magneto circuit on the outside, and used to produce a spark to ignite the fuel-air mixture in the engine. [Webster 1913 Suppl. +PJC]
Advertisement