natural action, natural process, activity, action - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"

spontaneous combustion - ignition of a substance (as oily rags) resulting from an internal oxidation process

electrical distributor, distributer, distributor - electrical device that distributes voltage to the spark plugs of a gasoline engine in the order of the firing sequence

electrical system - equipment in a motor vehicle that provides electricity to start the engine and ignite the fuel and operate the lights and windshield wiper and heater and air conditioner and radio

ignition coil - an induction coil that converts current from a battery into the high-voltage current required by spark plugs

ignition switch - switch that operates a solenoid that closes a circuit to operate the starter

magneto, magnetoelectric machine - a small dynamo with a secondary winding that produces a high voltage enabling a spark to jump between the poles of a spark plug in a gasoline engine

mechanism - device consisting of a piece of machinery; has moving parts that perform some function

spark coil - an induction coil used to create sparks

spark gap - a component of an ignition system; consists of two shaped electrodes and the space between them

spark plug, sparking plug, plug - electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark

burning, combustion - the act of burning something; "the burning of leaves was prohibited by a town ordinance"