afterburning

[ af-ter-bur-ning, ahf- ]
/ ˈæf tərˌbɜr nɪŋ, ˈɑf- /

noun

Aeronautics. combustion in an afterburner that results from the injection of fuel into the exhaust gases of a jet engine to produce additional thrust with more efficient fuel consumption.
Rocketry. an irregular burning of residual fuel in some rocket motors after the cessation of the main burning.

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Origin of afterburning

1885–90; after + burning, translation of German Nachbrennen
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for afterburning

afterburning
/ (ˈɑːftəˌbɜːnɪŋ) /

noun

Also called: reheat a process in which additional fuel is ignited in the exhaust gases of a jet engine to produce additional thrust
irregular burning of fuel in a rocket motor after the main burning has ceased
persistence of combustion in an internal-combustion engine, either in an incorrect part of the cycle or after the ignition has been switched off
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