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Consult Chambers 21st Century Dictionary, The Chambers Thesaurus (1996) or Chambers Biographical Dictionary (1997 edition with amendments). Enter your search and choose your title from the drop-down menu.
keratin noun, biochem a tough fibrous protein produced by the epidermis in vertebrates, and forming the main component of hair, nails, claws, horns, feathers and the dead outer layers of skin cells. keratinous adj.
ETYMOLOGY: 19c.
keratin noun, biochem a tough fibrous protein produced by the epidermis in vertebrates, and forming the main component of hair, nails, claws, horns, feathers and the dead outer layers of skin cells. keratinous adj.
ETYMOLOGY: 19c.
keratin noun, biochem a tough fibrous protein produced by the epidermis in vertebrates, and forming the main component of hair, nails, claws, horns, feathers and the dead outer layers of skin cells. keratinous adj.
ETYMOLOGY: 19c.
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The Chambers Dictionary (13th edition)
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The Chambers Thesaurus
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Chambers Biographical Dictionary
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Consult Chambers 21st Century Dictionary, The Chambers Thesaurus (1996) or Chambers Biographical Dictionary (1997 edition with amendments). Enter your search and choose your title from the drop-down menu.
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