/ Dictionary / Index T triphylite: Meaning and Definition of Find definitions for: triph•y•lite Pronunciation: (trif'u-līt"), [key] — n. a mineral, a rare phosphate of lithium, iron, and manganese, usually occurring in masses of a bluish or greenish color. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. triphthong triphyllous Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language