someone whose job is to treat people who are ill or injured. When written as a title, the abbreviation of doctor is Dr. A doctor who performs medical operations is called a surgeon. A doctor who treats people in an area or town is called a GP. The most senior type of doctor in a hospital is called a consultant. Someone being treated by a doctor or nurse is called a patientHannah had always wanted to be a doctor.
Doctor Jones specializes in heart problems.
go to/see a doctor: Have you seen a doctor yet?
ask/consult a doctor: If you are overweight, consult your doctor before trying these exercises.