1. the continued burning of fuel in a jet engine after the main combustion process, used to increase thrust
Usage: aviation/aerospace term; also called 'afterburner' in common usage
2. the elevated metabolic rate that continues after intense physical exercise
Usage: fitness/physiology term; informal

1. to continue burning or operating at high intensity after the initial phase
Usage: less common than noun forms

Examples

• The fighter jet engaged its afterburn to accelerate rapidly during the maneuver.
• Athletes experience afterburn for hours following a high-intensity workout.
• The engine's afterburn system provides additional thrust for takeoff.
• Your metabolism continues to afterburn even after you leave the gym.
• Modern jet engines use afterburn technology for supersonic flight.