/ Dictionary / Index P PDR: Meaning and Definition of Find definitions for: PDR Pronunciation: [key] Physicians' Desk Reference. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. P.D.Q. PDT Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language