By, or in the manner of, a doctor.

plural of Juris Doctor

A research paper that a student writes in order to complete the requirements for a doctorate; a dissertation.

A clinic where one or more doctors receives patients for their medical care.

plural of doctorand

simple past tense and past participle of doctorate

present participle of doctorate

(slang, obsolete) A juggler.

plural of doctor blade

(historical, in the Netherlands) A person who has passed an doctoral exam at a university, but has not yet attained a doctorate. / (uncommon) Alternative form of doctorand