/ Dictionary / Index P Phidippides: Meaning and Definition of Find definitions for: Phi•dip•pi•des Pronunciation: (fī-dip'i-dēz"), [key] — n. Pheidippides. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Phidias phi-function Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language