Also found in: Thesaurus, Acronyms, Encyclopedia, Wikipedia.
A ramjet airplane engine designed for hypersonic flight that burns fuel in the supersonic airstream produced by the plane.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a. a type of ramjet in which the forward motion of the craft forces oxygen to mix with fuel (usually hydrogen) at supersonic speeds within a duct in the engine
b. an aircraft powered by such an engine
c. (as modifier): scramjet technology.
[C20: from s(upersonic) + c(ombustion) + ramjet]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a ramjet engine in which the flow through the combustor itself is supersonic.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.