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afterburner

af·ter·burn·er [ áftər bùrnər ] (plural af·ter·burn·ers)


noun 
Definition:
 
1. device for increasing jet's thrust: a system for increasing the thrust of an aircraft jet engine by feeding fuel into the hot exhaust gases

2. part of car exhaust: a device in the exhaust system of an internal combustion engine for burning or catalytically destroying potentially harmful unburned or incompletely burned carbon compounds

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