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2010 - New Age Dictionary Database
By Oddity Software
 
1846 - Medical lexicon: a dictionary of medical science
By Robley Dunglison
 
1919 - The concise Oxford dictionary of current English
By Sir Augustus Henry
 
1790 - A Complete Dictionary of the English Language
By Thomas Sheridan

Word of the day

Pyrrolidinones

  • A compounds that are derivatives oxo-pyrrolidines. member this group 2-oxo pyrrolidine, which is an intermediate in the manufacture of polyvinylpyrrolidone. (From Merck Index, 11th ed)
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