stethoscopea medical instrument used for listening to sounds within the bodyThe doctor used a stethoscope to detect an irregular heartbeat during the examination.NoteThe doctor used a stethoscope to detect an irregular heartbeat during the examination.Elon.io is an online learning platformWe have an entire course teaching IELTS Vocabulary — Band 7+ grammar and vocabulary.Start learning IELTS Vocabulary — Band 7+ now