/ Dictionary / Index D diapason: Meaning and Definition of Find definitions for: di•a•pa•son Pronunciation: (dī"u-pā'zun, -sun), [key] — n. Music. a full, rich outpouring of melodious sound. the compass of a voice or instrument. a fixed standard of pitch. either of two principal timbres or stops of a pipe organ, one of full, majestic toneand the other of strong, flutelike tone any of several other organ stops. a tuning fork. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diapason (Thesaurus) dianthus diapason normal pitch Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language