Definition of afterburner
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 : a device for burning or catalytically destroying unburned or partially burned carbon compounds in exhaust (as from an automobile)
First Known Use of afterburner
Learn More about afterburner
Britannica.com: Encyclopedia article about afterburner
Seen and Heard
What made you want to look up afterburner? Please tell us where you read or heard it (including the quote, if possible).