Definition of "cornea" [cor•ne•a]

• The transparent convex anterior portion of the outer fibrous coat of the eyeball that covers the iris and the pupil and is continuous with the sclera. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The cornea is a clear, jelly-like membrane covering the eye."
• "Well, my right cornea is still mostly opaque, but I did write 1359 words today despite being half-blind."
• "Macrida Patterson, a 52-year-old Los Angeles traffic officer, told NBC's "Today" show that she suffered cuts to her cornea from the small piece of metal that had been used to secure a rhinestone heart onto the blue thong."