spark plugSEE DEFINITION OF spark plug
EXAMPLES FROM THE WEB FOR SPARK PLUG
All I did was to screw the spark plug in a bit tighter, and shut the pet-cock.
It had been broken off close to the battery box and the spark plug.
The spark plug S is located in the head, close to the inlet port.
Nat Trevor, if you dare to pun, I'll—I'll—bust your spark plug.
It might prove hard to get such a commodity as a spark plug in Millbrook.
B is the battery of five cells, C is the spark coil, G is the engine cylinder, f is the spark plug.
The spark plug f is porcelain—an exceedingly good insulator.
The spark plug is a simple device which may be compared to the fuse or percussion cap of the cannon.
The black line is not important, it was put there with a single wipe of the spark plug from the Lassie.
Crank the engine slowly by hand until air is forced out through the spark plug hole.