ramjet
Americannoun
noun
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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.
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See Note at turbojet
Etymology
Origin of ramjet
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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.
Ahead of the meeting, GE Aerospace announced that researchers in its Niskayuna, New York, R&D center developed a preliminary design for a hypersonic ramjet External link engine using an in-house generative AI tool.
From Barron's • May 19, 2026
Reaching Mach 5 involves the use of a so-called ramjet, which is similar to a traditional jet engine but doesn’t have any moving parts.
From Los Angeles Times • Apr. 7, 2026
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 • Jun. 10, 2020
HCMs use a supersonic combustion ramjet, or “scramjet,” to accelerate.
From Science Magazine • Jan. 8, 2020
For the ramjet to work, it needs a frontal scoop hundreds of kilometers across.
From "Cosmos" by Carl Sagan
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
