/ Dictionary / Index L line of vision: Meaning and Definition of Find definitions for: line' of vi'sion Pronunciation: [key] — Ophthalm. Ophthalm. a straight line that connects the fovea centralis of an eye with the point on which the eye focuses. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. line of site lineolate Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language