/ Dictionary / Index E ectocornea: Meaning and Definition of Find definitions for: ec•to•cor•ne•a Pronunciation: (ek"tō-kôr'nē-u), [key] — n. Anat. the outer layer of the cornea. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ectocommensal ectoderm Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language