ignition

noun ig·ni·tion \ ig-ˈni-shən \
Updated on: 17 Apr 2018

Definition of ignition

1 : the act or action of igniting: such as
a : the starting of a fire
b : the heating of a plasma to a temperature high enough to sustain nuclear fusion
2 a : the process or means (such as an electric spark) of igniting a fuel mixture
b : a device that activates an ignition system (as in an automobile)
  • put the key in the ignition

Examples of ignition in a Sentence

  1. There's a problem with the car's ignition.

Recent Examples of ignition from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ignition.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ignition

1612

in the meaning defined at sense 1

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IGNITION Defined for English Language Learners

ignition

Definition of ignition for English Language Learners

  • : the electrical system in an engine that causes the fuel to burn so that the engine begins working

  • : the device that is used to start a car's engine

  • : the act of causing something to start burning : the act of igniting something


IGNITION Defined for Kids

ignition

noun ig·ni·tion \ ig-ˈni-shən \

Definition of ignition for Students

1 : the act of causing something to start burning
2 : the process or means (as an electric spark) of causing the fuel in an engine to burn so that the engine begins working
3 : a device that is used to start a motor vehicle
  • Put the key in the ignition.


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