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afterburner

[af-ter-bur-ner, ahf-]
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noun
  1. Aeronautics. a device placed within, or attached to the exit of, a jet-engine exhaust pipe to produce afterburning.
  2. 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. 2018
British Dictionary definitions for afterburner

afterburner

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