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1910 - Black's Law Dictionary (2nd edition)
By Henry Campbell Black
 
1908 - Chambers's Twentieth Century Dictionary of the English Language
By Thomas Davidson
 
1919 - The concise Oxford dictionary of current English
By Sir Augustus Henry
 
1871 - The Cabinet Dictionary of the English Language

Word of the day

Quinones

  • Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.
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