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preignition

[pree-ig-nish-uh n] /ˌpri ɪgˈnɪʃ ən/
noun
1.
ignition of the charge in an internal-combustion engine earlier in the cycle than is compatible with proper operation.
Origin
1895-1900
1895-1900; pre- + ignition
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for preignition
  • preignition causes engines to run rough, and to not shut off when the key is turned off.
  • The preignition oxidative behavior of the alloy was highly variable.
  • Such hot spots may cause preignition, with high peak combustion temperature and pressure and increased detonation tendency.

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