ignition coil

noun

1. (in an automotive ignition system) a transformer consisting of two wire windings or coils in which low-voltage direct current is fed through the primary winding to generate high-voltage spark pulses in the secondary winding.

ignition coil

noun

1. an induction coil that supplies the high voltage to the sparking plugs of an internal-combustion engine

Word History and Origins

Origin of ignition coil¹

First recorded in 1895–1900

Example Sentences

A third method uses a Ford ignition coil, as shown in Fig. 222.

From Project Gutenberg