心しん音おん図ずMeanings1nounphonocardiogram; PCGmedicineMedical term for a graphic recording of heart sounds; used in cardiology.医い師しは心しん音おん図ずを解かい析せきして心しん雑ざつ音おんの有う無むを調しらべた。The doctor analyzed the phonocardiogram to check for heart murmurs.