keratin
Kelime Anlamı :

1. kerat.
2. keratin.
3. biyokim.
4. tüm boynuzsu dokuların temelini oluşturan erimez protein.
5. (isim) keratin.
6. Saç ve boynuz ve tırnağın esas maddesi, keratin.
Tanımlar :
1. A tough, insoluble protein substance that is the chief structural constituent of hair, nails, horns, and hooves.
from The American Heritage® Dictionary of the English Language, 4th Edition
1. A protein which hair and nails are comprised of.
from Wiktionary, Creative Commons Attribution/Share-Alike License
1. A sulfur-containing fibrous protein constituting the main structural protein of hard epidermal tissues, such as horn, hair, feathers, nails, claws, hoofs, and the like. it is an insoluble substance, and, unlike elastin, is not dissolved even by gastric or pancreatic juice. by decomposition with sulphuric acid it yields leucine and tyrosine plus various other acid-stable amino acids. the amino acid composition varies, but it usually has a high percentage of cystine, which stabilizes and insolubilizes the protein by forming intrachain linkages. A softer form of keratin is present in the epidermis and whalebone. called also epidermose.
from the GNU version of the Collaborative International Dictionary of English
1. same as ceratin.
from The Century Dictionary and Cyclopedia
1. a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.