Stirling engine
noun
Stir·ling engine
ˈstər-liŋ- 
: an external combustion engine having an enclosed working fluid (such as helium) that is alternately compressed and expanded to operate a piston
Cite this Entry
“Stirling engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Stirling%20engine. Accessed 31 Oct. 2025.
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