noun af·ter·burn·er \-ˌbər-nər\

Definition of afterburner

  1. 1 :  a device incorporated into the tailpipe of a turbojet engine for injecting fuel into the hot exhaust gases and burning it to provide extra thrust

  2. 2 :  a device for burning or catalytically destroying unburned or partially burned carbon compounds in exhaust (as from an automobile)


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