rotary engine

See synonyms for rotary engine on
  1. an engine, as a turbine, in which the impelling fluid produces torque directly rather than by acting upon reciprocating parts.

  2. a revolving radial engine.

Origin of rotary engine

First recorded in 1810–20

Words Nearby rotary engine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use rotary engine in a sentence

  • The Gnome rotary engine was first used with success at this meeting.

    Aviation in Peace and War | Sir Frederick Hugh Sykes
  • The first steam engine invented by Hero was a rotary engine, but it was of course, most uneconomical of steam.

    Invention | Bradley A. Fiske
  • In the Gnome rotary engine the lightness is entirely due to the initial design and to the materials employed in manufacture.

    Aviation Engines | Victor Wilfred Pag
  • It has recently become common to construct the steam fire-engine with rotary engine and pump (Fig. 122).

  • These advantages adapt the rotary engine, in an especial manner, to the driving of a locomotive or steam fire-engine.

British Dictionary definitions for rotary engine

rotary engine

  1. an internal-combustion engine having radial cylinders that rotate about a fixed crankshaft

  2. 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