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1. A flame produced in the breech of a gun by ignition of residual gases.
2. A burst of something aimed back at its origin; a backfire: a flareback of bad publicity.
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.
1. (Firearms, Gunnery, Ordnance & Artillery) a flame ignited in the breech of a gun when the gun is fired, caused by the burning of residual flammable gases
2. US a negative, often unexpected, consequence of an action
3. a brief return to a negative state after a marked improvement
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014