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preignition: Meaning and Definition of

pre•ig•ni•tion

Pronunciation: (prē"ig-nish'un), [key]
— n.
  1. ignition of the charge in an internal-combustion engine earlier in the cycle than is compatible with proper operation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
prehuman pre-Incan
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