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ignition

 - 2 dictionary results

ig⋅ni⋅tion

[ig-nish-uhn]
–noun
1. the act or fact of igniting; state of being ignited.
2. a means or device for igniting.
3. (in an internal-combustion engine) the process that ignites the fuel in the cylinder.

Origin:
1605–15; ML ignītiōn- (s. of ignītiō) a setting on fire. See ignite, -ion
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ig·ni·tion   (ĭg-nĭsh'ən)   
n.  
  1. The raising of a substance to its ignition point, as by electric current, friction, or mechanical shock.

    1. An electrical system, typically powered by a battery or magneto, that provides the spark to ignite the fuel mixture in an internal-combustion engine.

    2. A switch that activates this system.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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