Lectionary Calendar
				Tuesday, November 4th, 2025
the Week of Proper 26 / Ordinary 31
			the Week of Proper 26 / Ordinary 31
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Bible Dictionaries
Keratin
Webster's Dictionary
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(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.
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These files are public domain.
Text Courtesy of BibleSupport.com. Used by Permission.
Bibliography Information
Webster, Noah. Entry for 'Keratin'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​k/keratin.html. 1828.
		
	Webster, Noah. Entry for 'Keratin'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​k/keratin.html. 1828.