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
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Stirling engines introduce moving parts, which also raises reliability concerns in space.
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Kaif Shaikh, Interesting Engineering, 14 Nov. 2025
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Kaif Shaikh, Interesting Engineering, 14 Nov. 2025
Cite this Entry
“Stirling engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Stirling%20engine. Accessed 25 Nov. 2025.
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