Main Entry: af·ter·burn·er

Pronunciation: \-ˌbər-nər\

Function: noun

Date: 1947

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)