Online Resource Library
Commentary Index | Return to PrayerRequest.com | DownloadNoah Webster Dictionary (1913 edition): Spark plug
Subjects in this Topic:
In internal-combustion engines with electric ignition, a plug, screwed into the cylinder head, having through it an insulated wire which is connected with the induction coil or magneto circuit on the outside, and forms, with another terminal on the base of the plug, a spark gap inside the cylinder.