Etymology: (1670–80; < ML doctorātus. See doctor , -ate3)
Definition of 'doctor'
Princeton's WordNet
1. (noun)doctor, doc, physician, MD, Dr., medico a licensed medicalpractitioner "I felt so bad I went to see my doctor"
2. (noun)Doctor of the Church, Doctor (Roman Catholic Church) a title conferred on 33 saints who distinguished themselves through the orthodoxy of their theological teaching "the Doctors of the Church greatly influenced Christian thought down to the late Middle Ages"
3. (noun)doctor children take the roles of physician or patient or nurse and pretend they are at the physician's office "the children explored each other's bodies by playing the game of doctor"
4. (verb)doctor, Dr. a person who holds Ph.D. degree (or the equivalent) from an academic institution "she is a doctor of philosophy in physics"
5. (verb)sophisticate, doctor, doctor up alter and make impure, as with the intention to deceive "Sophisticate rose water with geraniol"
7. (verb)repair, mend, fix, bushel, doctor, furbish up, restore, touch on restore by replacing a part or putting together what is torn or broken "She repaired her TV set"; "Repair my shoes please"
3. (verb)doctor to alter sth dishonestly The newspaper has admitted doctoring the photo.
Definition of 'doctor'
Webster Dictionary
1. (noun)doctor a teacher; one skilled in a profession, or branch of knowledge learned man
2. (noun)doctor an academical title, originally meaning a men so well versed in his department as to be qualified to teach it. Hence: One who has taken the highest degree conferred by a university or college, or has received a diploma of the highest degree; as, a doctor of divinity, of law, of medicine, of music, or of philosophy. Such diplomas may confer an honorary title only
3. (noun)doctor one duly licensed to practice medicine; a member of the medical profession; a physician
4. (noun)doctor any mechanical contrivance intended to remedy a difficulty or serve some purpose in an exigency; as, the doctor of a calico-printing machine, which is a knife to remove superfluous coloring matter; the doctor, or auxiliary engine, called also donkeyengine