/ Dictionary / Index A audiphone: Meaning and Definition of Find definitions for: au•di•phone Pronunciation: (ô'du-fōn"), [key] — n. Med. a kind of diaphragm held against the upper teeth to assist hearing by transmitting sound vibrations to the auditory nerve. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. audiovisual aids audit Related Content Daily Word Quiz: lyre Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language