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keratin

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noun ker·a·tin \ˈker-ə-tən\

Definition of keratin

  1. :  any of various sulfur-containing fibrous proteins that form the chemical basis of horny epidermal tissues (as hair and nails)

ke·ra·ti·nous play \kə-ˈra-tə-nəs\ adjective


Origin of keratin

International Scientific Vocabulary


First Known Use: circa 1849

Other Biochemistry Terms


Medical Dictionary

keratin

play
noun ker·a·tin \ˈker-ət-ən\

Medical Definition of keratin

  1. :  any of various sulfur-containing fibrous proteins that form the chemical basis of horny epidermal tissues (as hair and nails) and are typically not digested by enzymes of the gastrointestinal tract—see pseudokeratin




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