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Keratin - Dictionary Definition and Overview |
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Keratin : (noun)
1: a fibrous scleroprotein that occurs in the outer layer of
the skin and in horny tissues such as hair feathers nails
and hooves [syn: ceratin]
Based on WordNet 2.0
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Keratin : \Ker"a*tin\, n. [Gr. ke`ras, -atos, horn.] (Physiol.
Chem.)
A nitrogenous substance, or mixture of substances, containing
sulphur in a loose state of combination, and forming the
chemical basis of epidermal tissues, such as horn, hair,
feathers, 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 leucin and tyrosin, as does albumin. Called also
epidermose.
Based on Webster's Revised Unabridged Dictionary
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Keratin : Keratin: Protein in the upper layer of the skin, hair, nails and animal horns. The word keratin comes from the Indo-European ker meaning horn.
Based on Webster's Revised Unabridged Dictionary (1913)
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Example Usage of Keratin |
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