afterburner

[ af-ter-bur-ner, ahf- ]
/ ˈæf tərˌbɜr nər, ˈɑf- /

noun

Aeronautics. a device placed within, or attached to the exit of, a jet-engine exhaust pipe to produce afterburning.
a device for burning exhaust fumes from an internal-combustion engine, as of an automobile.

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Origin of afterburner

First recorded in 1945–50; after + burner
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for afterburner

afterburner
/ (ˈɑːftəˌbɜːnə) /

noun

a device in the exhaust system of an internal-combustion engine for removing or rendering harmless potentially dangerous components in the exhaust gases
a system of fuel injection and combustion located behind the turbine of an aircraft jet engine to produce additional thrust
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