keratosis

[ker-uh-toh-sis]
noun, plural keratoses [ker-uh-toh-seez] . Pathology.
1.
any skin disease characterized by a horny growth, as a wart.
2.
any horny growth.
Also, keratoma.


Origin:
1880–85; kerat- + -osis

keratosic, keratotic [ker-uh-tot-ik] , adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
keratosis (ˌkɛrəˈtəʊsɪs)
 
n
1.  any skin condition marked by a horny growth, such as a wart
2.  a horny growth

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

keratosis ker·a·to·sis (kěr'ə-tō'sĭs)
n. pl. ker·a·to·ses (-sēz)
Excessive growth of horny tissue of the skin.


ker'a·tot'ic (-tŏt'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
Encyclopedia

keratosis

any protuberance on the skin resulting from the overdevelopment of the horny outermost covering of the skin, or epidermis, the main constituent of which is the protein keratin, which is synthesized in special cells of the skin, the keratinocytes. More generally, keratosis is any skin disorder attended by horny growths. The causes and lesions characteristic of keratotic skin disorders are varied, giving rise to some 20 different forms of keratosis; the more common ones are as follows:

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Actinic keratosis is a precancerous skin lesion that rarely may become a squamous cell cancer.
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