preignition
noun
pre·ig·ni·tion
ˌprē-ig-ˈni-shən 
: ignition in an internal combustion engine while the inlet valve is open or before compression is completed
Examples of preignition in a Sentence
Recent Examples on the Web
The warm-up, preignition, and main combustion initiation sequence of the R-7 took 10 to 15 seconds to gather force before the rocket lifted off.
—
Jim Oberg, Discover Magazine, 16 Apr. 2014
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Jim Oberg, Discover Magazine, 16 Apr. 2014
Cite this Entry
“Preignition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/preignition. Accessed 2 May. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share