afterburner

noun

Etymology: Etymology tree Proto-Indo-European *h₂ep Proto-Indo-European *-o Proto-Indo-European *h₂epó Proto-Indo-European *-teros Proto-Indo-European *h₂ep(o)teros Proto-Germanic *after Old English æfter Middle English after English after ▲ Old English æfter Old English æfter- Middle English after- English after- English burner English afterburner From after- + burner.

1. A device in a jet engine which injects fuel into the exhaust system to increase the thrust.