precombustion chamber


: an auxiliary space in which combustible gases are ignited and combustion started ahead of the main combustion chamber of a jet or gas engine
The glow plug is an electrically operated device that protrudes into the precombustion chamber. When energized the glow plug tip heats to a dull red. The swirling, highly compressed air-fuel mixture is heated by the glow plug tip.Auto Fundamentals

Word History

First Known Use

1914, in the meaning defined above

Time Traveler
The first known use of precombustion chamber was in 1914

Dictionary Entries Near precombustion chamber

Cite this Entry

“Precombustion chamber.” Dictionary, Merriam-Webster, Accessed 4 Oct. 2023.

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