preignition Hear it!

preignition definition

pre·igni·tion (prē′ig nis̸h′ən)

noun

in an internal-combustion engine, ignition occurring before the intake valve is closed or before the spark plug fires

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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