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rotary engine

an engine, as a turbine, in which the impelling fluid produces torque directly rather than by acting upon reciprocating parts.
a revolving radial engine.
Origin of rotary engine
1810-20 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for rotary engine
  • Then you have the steam rotary engine that will run mainly on water for steam and fuel.
  • In a rotary engine, such as a jet turbine, power is supplied directly to vanes or other rotating parts.
  • One early type was the rotary engine, where the entire engine turned.
British Dictionary definitions for rotary engine

rotary engine

an internal-combustion engine having radial cylinders that rotate about a fixed crankshaft
an engine, such as a turbine or wankel engine, in which power is transmitted directly to rotating components
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
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