See Also: Keratin(medicine)
Keratin(health)
keratin(dictionary)
keratin(encyclopedia)
Keratin filaments(medicine)
keratin pearl(medicine)
mucopolysaccharide keratin dystrophy(medicine)

keratin (iou)



keratin noun. M19.
[from Greek kerat-, keras horn + -IN1.]
Biochemistry. Any of a group of fibrous proteins which have a structure cross-linked by disulphide bonds and form the chief structural constituent of skin, nails, hair, feathers, horn, etc.