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atmospheric engine

noun
1.
an early form of single-acting engine in which the power stroke is provided by atmospheric pressure acting upon a piston in an exhausted cylinder.
Origin
1815-1825
1815-25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for atmospheric engine
  • The work performed by this atmospheric engine drives the atmospheric general circulation.

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20
22
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