kerato-

kerato-

or kerat- also cerato- or cerat-

pref.

1. Horn; horny: keratosis.

2. Cornea: keratectomy.

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[Greek kerāto-, horn, from keras, kerāt-; see ker- in Indo-European roots.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

kerato-

or before a vowel

kerat-

combining form

1. indicating horn or a horny substance: keratin; keratogenous.

2. (Medicine) indicating the cornea: keratoplasty.

[from Greek kerat-, keras horn]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

kerato-

a combining form meaning “cornea”: keratoplasty.

Also, esp. before a vowel, kerat-.

[< Greek kerat- horn; compare cornea]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.