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ignition coil

(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.
Also called coil.
Origin of ignition coil
1895-1900 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for ignition coil
  • Water or oil may enter into the ignition coil cover and the spark plug bore causing a misfire.
  • As he attempted to remove the spark plug wire from the ignition coil there was a small arc fire that generated from the coil.
British Dictionary definitions for ignition coil

ignition coil

an induction coil that supplies the high voltage to the sparking plugs of an internal-combustion engine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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