/ Dictionary / Index P phenacite: Meaning and Definition of Find definitions for: phen•a•cite Pronunciation: (fen'u-sīt"), [key] — n. a rare vitreous mineral, beryllium silicate, BeSiO, occurring in crystals, sometimes used as a gem. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phenacetin phenanthrene Related Content Daily Word Quiz: reluctant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language