/ Dictionary / Index O omphacite: Meaning and Definition of Find definitions for: om•pha•cite Pronunciation: (om'fu-sīt"), [key] — n. Mineral. a pale-green variety of pyroxene similar to olivine, found in eclogite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Omotic omphalos Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language