/ Dictionary / Index P philharmonic pitch: Meaning and Definition of Find definitions for: phil'harmon'ic pitch' Pronunciation: [key] — Music. Music. a standard of pitch in which A above middle C is established at 440 vibrations per second. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. philharmonic philhellene Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language