/ Dictionary / Index T Trilafon: Meaning and Definition of Find definitions for: Tril•a•fon Pronunciation: (tril'u-fon"), [key] — Pharm., Trademark. Pharm.,Trademark. a brand of perphenazine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Trikora trilateral Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language