ignition n
1 the act or process of initiating combustion
2 the process of igniting the fuel in an internal-combustion engine
3 the devices used to ignite the fuel in an internal-combustion engine
compression-ignition engine n
a type of internal-combustion engine, such as a diesel, in which ignition occurs as a result of the rise in temperature caused by compression of the mixture in the cylinder
electronic ignition n
any system that uses an electronic circuit to supply the voltage to the sparking plugs of an internal-combustion engine
ignition coil n
an induction coil that supplies the high voltage to the sparking plugs of an internal-combustion engine
ignition key n
the key used in a motor vehicle to turn the switch that connects the battery to the ignition system and other electrical devices
pre-ignition n ignition of all or part of the explosive charge in an internal-combustion engine before the exact instant necessary for correct operation