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ramjet

American  
[ram-jet] / ˈræmˌdʒɛt /

noun

  1. a jet engine operated by the injection of fuel into a stream of air compressed by the forward speed of the aircraft.


ramjet British  
/ ˈræmˌdʒɛt /

noun

  1. Also called: athodyd

    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

"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

ramjet Scientific  
/ rămjĕt′ /
  1. 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.

  2. See Note at turbojet


Etymology

Origin of ramjet

First recorded in 1940–45; ram 1 + jet 1

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A scramjet is a supersonic combustion ramjet involving combustion that uses the forward speed of the aircraft as part of its propulsion.

From Washington Times

This makes ramjet missiles suitable for firing in the atmosphere, but near or through space like rockets.

From Fox News

Another daunting challenge is the supersonic combustion ramjet, — or “scramjet” — engine that powers hypersonic cruise missiles such as those in the Air Force’s conventional strike weapon contract.

From Los Angeles Times

Development of a larger scramjet engine — formally known as a supersonic combustion ramjet — also has been challenging.

From Los Angeles Times

There’s plenty of hypothetical innovation, too: ramjet fusion machines, antimatter engines and “laser porting” of human connectomes to enable bodiless exploration of the cosmos.

From Nature