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British Dictionary definitions for air engine

air engine

noun
  1. an engine that uses the expansion of heated air to drive a piston
  2. a small engine that uses compressed air to drive a piston
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for air engine

Historical Examples

  • Myself, I do not think He keeps the world waitin' for this air-engine.

    The Atlantic Monthly, Vol. 12, No. 74, December, 1863

    Various

  • Air-engine, an engine in which air heated, and so expanded, or compressed air is used as the motive power.

  • An air-engine works through the expansion of air in a cylinder by heat.