precombustion engine
noun
: an internal combustion engine with a small uncooled precombustion chamber in which a portion of the mixture is ignited and in turn ignites the cylinder charge
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“Precombustion engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/precombustion%20engine. Accessed 26 Nov. 2024.
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