/ Dictionary / Index E eyestone: Meaning and Definition of Find definitions for: eye•stone Pronunciation: (ī'stōn"), [key] — n. a small calcareous body, flat on one side and convex on the other, passed between the eye and the eyelid to bring out cinders or other foreign matter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. eyestalk eyestrain Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language