noun🔗ShareピストンA 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's engine used a piston to compress the air and create power. "車のエンジンは、空気を圧縮してパワーを生み出すためにピストンを使用しました。machinetechnicalpartdeviceenergyChat with AIVocabulary GamePractice Reading
noun🔗ShareピストンA valve device in some brass instruments for changing the pitch"The brass band's music teacher showed the students how to use the piston valves to play different notes. "ブラスバンドの音楽教師は、生徒たちにピストンを使ってさまざまな音を出す方法を教えました。musicdevicetechnicalmachineChat with AIVocabulary GamePractice Reading
verb🔗Shareピストンのように上下に動くTo move up and down like a piston."The elevator pistoned up and down, carrying the workers to the different floors. "エレベーターはピストンのように上下に動き、作業員をさまざまな階に運んだ。machinetechnicalactionChat with AIVocabulary GamePractice Reading
