A medical instrument (stethoscope) used by doctors or nurses to listen to internal body sounds such as heartbeats and breath sounds.
医者が聴診器を胸に当てて心音を聞いた。
The doctor placed the stethoscope on the chest and listened to the heartbeat.
新しい聴診器は音がとてもはっきり聞こえる。
The new stethoscope picks up sounds very clearly.
聴診器を消毒してから患者に使用してください。
Please disinfect the stethoscope before using it on a patient.