noun
- A fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves.
- synonyms: ceratin
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). keratin. Retrieved September 21, 2026, from http://smartdefine.org/keratin/definitions/1248038 |
| Chicago | WordNet. 2010. "keratin" http://smartdefine.org/keratin/definitions/1248038 (accessed September 21, 2026). |
| Harvard | WordNet 2010, keratin, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/keratin/definitions/1248038>. |
| MLA | WordNet. "keratin" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/keratin/definitions/1248038> |