/ Dictionary / Index P philtre: Meaning and Definition of Find definitions for: phil•tre Pronunciation: (fil'tur), [key] — -tred, -tring. philter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: philtre (Thesaurus) philter philtrum Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language