/ Dictionary / Index E epidote: Meaning and Definition of Find definitions for: ep•i•dote Pronunciation: (ep'i-dōt"), [key] — n. a mineral, calcium aluminum iron silicate, Ca(Al, Fe)SiO(OH), occurring in green prismatic crystals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. epidiorite epidural Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language