- the transparent anterior part of the external coat of the eye covering the iris and the pupil and continuous with the sclera.
Origin of cornea
1350–1400; Middle English < Medieval Latin cornea (tēla, later tunica) horny (web or tunic), feminine of corneus corneous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for corneal
These resulted in trips to the ER for burns, corneal abrasions, and the odd amputation.Fireworks, Lightning, Riding Lawnmowers and Other Summer Menaces
July 9, 2013
The corneal reflex may be abolished, and still the patient may move.Experiments on Animals
It is then divided as close to the corneal wound as possible.
It could have been a corneal tattoo, but somehow I doubted it.Modus Vivendi
Gordon Randall Garrett
The epidermic layer gives rise to the corneal lenses, the crystalline cones, and the pigment around the latter.
In all simple eyes the corneal lens is formed by a thickening of the cuticle.
- the convex transparent membrane that forms the anterior covering of the eyeball and is continuous with the sclera
C14: from Medieval Latin cornea tēla horny web, from Latin cornū horn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for corneal
late 14c., from Medieval Latin cornea tela "horny web or sheath," from Latin cornu (genitive cornus) "horn" (see horn (n.)). So called for its consistency. Related: Corneal.
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- The tough transparent membrane of the outer layer of the eyeball that covers the iris and the pupil.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.