Webster’s Revised Unabridged Dictionary · 1913 Cornea Cor′ne·a (k?r′n?-?), n.; pl. Corneas (-ȧz). [Fem. sing., fr. L. corneus horny, fr. cornu a horn. See Horn.] (Anat.) The transparent part of the coat of the eyeball which covers the iris and pupil and admits light to the interior. See Eye. ‹ Corndodger Corneal ›