Definition of keratin in English:
A fibrous protein forming the main structural constituent of hair, feathers, hoofs, claws, horns, etc.
- Cells are laced with a network of fibres more rigid than the rope-like structural proteins collagen and keratin.
- Amino acids are absorbed by the body to help build keratin, the main protein in hair.
- Cat claws are made of keratin, a protein also found in human nails.
Definition of keratin in:
- US English dictionary
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