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ignition system

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noun
  1. the system in an internal-combustion engine that produces the spark to ignite the mixture of fuel and air: includes the battery, ignition coil, distributor, spark plugs, and associated switches and wiring.

Origin of ignition system

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018