/ Dictionary / Index E euhedral: Meaning and Definition of Find definitions for: eu•he•dral Pronunciation: (y-hē'drul), [key] — adj. Petrog. idiomorphic (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. eugonic euhemerism Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language