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[ram-jet] /ˈræmˌdʒɛt/
a jet engine operated by the injection of fuel into a stream of air compressed by the forward speed of the aircraft.
Also called ramjet engine.
Origin of ramjet
1940-45; ram1 + jet1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for ramjet
Historical Examples
  • A bunch of Australian bushmen stumbling onto a ramjet and trying to figure out how it works.

    Masters of Space Edward Elmer Smith
British Dictionary definitions for ramjet


  1. a type of jet engine in which fuel is burned in a duct using air compressed by the forward speed of the aircraft
  2. an aircraft powered by such an engine
Also called athodyd
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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Word Origin and History for ramjet

1942, from ram (v.) + jet (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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ramjet in Science
A cylindrical jet propulsion engine consisting of air intake and combustion chambers into which burning fuel is injected, forcing hot air out of the rear of the engine at high pressures to provide forward thrust. See Note at turbojet.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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