noun🔗SharePostcombustionA device in the engine of an aircraft which injects fuel into the exhaust system to increase the thrust."The pilot engaged the afterburner, creating a sudden burst of speed to quickly climb into the sky. "Le pilote a engagé la postcombustion, créant une accélération soudaine pour monter rapidement dans le ciel.devicemachinetechnologyvehiclemilitaryenergyChat with AIVocabulary GamePractice Reading