combustion chamber

noun

: a closed space inside an engine in which fuel is burned

Examples of combustion chamber in a Sentence

Recent Examples on the Web
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.
As for his liquid rocket research, one of Goddard's most noteworthy designs, which is still used today, was allowing very cold liquid oxygen to cool a rocket combustion chamber while the oxygen was leaving the fuel tank. Elizabeth Howell, Space.com, 16 Mar. 2026 While previous tests lasted only a fraction of a second due to the risk of melting combustion chambers, the team recently ran the turbine for 303 seconds. Aman Tripathi, Interesting Engineering, 27 Feb. 2026 The engine features multiple combustion chambers and fuel injection systems pioneered by the Nettuno V-6 in Stellantis’ Maserati luxury brand’s MC20 super car. Mark Phelan, Freep.com, 25 Feb. 2026 Why some engines need it Many modern engines squeeze more power from less fuel by raising pressure and heat in the combustion chamber. Chris Hardesty, AJC.com, 16 Jan. 2026 See All Example Sentences for combustion chamber

Word History

First Known Use

1853, in the meaning defined above

Time Traveler
The first known use of combustion chamber was in 1853

Browse Nearby Words

Cite this Entry

“Combustion chamber.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/combustion%20chamber. Accessed 26 Mar. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster