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preignition

[ pree-ig-nish-uhn ]

noun

  1. ignition of the charge in an internal-combustion engine earlier in the cycle than is compatible with proper operation.


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Word History and Origins

Origin of preignition1

First recorded in 1895–1900; pre- + ignition
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Example Sentences

Examples have not been reviewed.

“We want to keep this fire on the ground — scorch height, but no higher,” Jason Wingard, the burn boss, told his crew in the preignition briefing.

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Seconds later, preignition pyros fired, igniting the main engines, and the MAV lurched upward.

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prehumanpre-ignition