Definitions

1. noun

A person who has received a medical or doctoral degree; a person who practices medicine, especially one who has received a medical degree from a university.

“She consulted a doctor about her symptoms.”

2. verb

To treat or examine (a person) as a doctor, especially in order to diagnose or cure a disease.

“The nurse doctored the wound with antiseptic cream.”

3. noun

A person who is a specialist in a particular subject or field, especially one who has a high level of authority or expertise.

“He is a renowned doctor of philosophy.”