noun🔗SharePistonA solid disk or cylinder that fits inside a hollow cylinder, and moves under pressure (as in an engine) or displaces fluid (as in a pump)"The car engine uses pistons to convert the fuel's energy into movement. "Le moteur de la voiture utilise des pistons pour convertir l'énergie du carburant en mouvement.machinetechnicalpartdeviceChat with AIVocabulary GamePractice Reading
noun🔗ShareDispositif à pistonsA valve device in some brass instruments for changing the pitch"The trumpet player pressed the pistons to change the notes of the song. "Le trompettiste a appuyé sur les pistons pour changer les notes de la chanson.musicdevicetechnicalChat with AIVocabulary GamePractice Reading
