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| Stir·ling en·gine (plural Stir·ling en·gines) |
noun |
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| Definition: |
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external-combustion engine: an external-combustion engine in which heat generated on the outside of the cylinders causes either air or an inert gas within the cylinders to expand and drive the pistons
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| [Mid-19th century. After Rev. Robert Stirling (1790-1878), Scottish cleric and engineer] |
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