- spark plug
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The part of an internal combustion engine which forms a high-voltage electric spark which ignites the fuel-air mixture to begin the power stroke.
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spark plug
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spark|plug — spark plug, 1. a device in the cylinder of an internal combustion engine by which the mixture of gasoline and air is exploded by an electric spark. 2. Informal, Figurative. a person who gives energy or enthusiasm to others: »The shortstop is the… … Useful english dictionary
spark-plug — spark plug, 1. a device in the cylinder of an internal combustion engine by which the mixture of gasoline and air is exploded by an electric spark. 2. Informal, Figurative. a person who gives energy or enthusiasm to others: »The shortstop is the… … Useful english dictionary
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 … The Collaborative International Dictionary of English
spark plug — spark′ plug n. 1) aum elm a device that ignites the fuel mixture in a cylinder of an internal combustion engine 2) inf a person who leads, inspires, or animates • Etymology: 1900–05 spark′plug , v.t. plugged, plug•ging … From formal English to slang
spark plug — also sparking plug BrE n a part in a car engine that produces an electric ↑spark to make the petrol mixture start burning … Dictionary of contemporary English
spark plug — spark ,plug noun count a small part in a car s engine that creates a SPARK that makes the fuel burn … Usage of the words and phrases in modern English
spark plug — spark plugs N COUNT A spark plug is a device in the engine of a motor vehicle, which produces electric sparks to make the petrol burn … English dictionary
spark plug — (also sparking plug) ► NOUN ▪ a device for firing the explosive mixture in an internal combustion engine … English terms dictionary
spark plug — ☆ spark plug n. 1. an electrical device threaded into the cylinder of an internal combustion engine to ignite the fuel mixture by producing timed sparks between electrodes 2. Informal a person or thing that inspires, activates, or advances… … English World dictionary
Spark plug — A spark plug (also, very rarely nowadays, in British English: a sparking plug) is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed aerosol gasoline by means of an electric spark.… … Wikipedia
spark plug — A device containing two electrodes across which electricity jumps to produce a spark to fire the fuel charge. The center electrode is insulated from the spark plug shell by means of a molded insulator resembling porcelain. The side electrode… … Dictionary of automotive terms
