plural of afterburn

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

plural of afterburner

(aviation) The injection of extra fuel into a jet engine downstream of the turbines in order to achieve extra thrust.

The burning of further calories after the end of a period of vigorous exercise. / (sociology) The practice of criticizing a person after they have left, or stopped contributing to the conversation.