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1919 - The Winston Simplified Dictionary
By William Dodge Lewis, Edgar Arthur Singer
 
1919 - The Concise Standard Dictionary of the English Language
By James Champlin Fernald
 
1914 - Nuttall's Standard dictionary of the English language
By Nuttall, P.Austin.

Word of the day

beta Aspartic Acid

  • An residue in chains that linked at beta-group instead normal, alpha-carboxyl group, polypeptide linkage. It is a result of the spontaneous decomposition aspartic acid or ASPARAGINE residues.
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