/ Dictionary / Index D Doctor of Philosophy: Meaning and Definition of Find definitions for: Doc'tor of Philos'ophy Pronunciation: [key] Also calledthe highest degree awarded by a graduate school, usually to a person who has completed at least three years of graduate study and a dissertation approved by a board of professors. a person who has been awarded this degree. Abbr.: Ph.D. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. doctorfish Doctor of the Church Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language