Thesaurus: keratin

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1. n. 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.
2. n. a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves
3. 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.
4. A nitrogenous substance, or mixture of substances, containingsulphur in a loose state of combination, and forming the chemicalbasis of epidermal tissues, such as horn, hair, feathers, and thelike. It is an insoluble substance, and, unlike elastin, is notdissolved even by gastric or pancreatic juice. By decomposition withsulphuric acid it yields leucin and tyrosin, as does albumin. Calledalso epidermose.
5. n:100 n. a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves