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1919 - The Concise Standard Dictionary of the English Language
By James Champlin Fernald
 
1874 - Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.
 
1790 - A Complete Dictionary of the English Language
By Thomas Sheridan

Word of the day

Nuclear Fissions

  • Nuclear reaction in which the nucleus of heavy atom such as uranium plutonium is split into two approximately equal parts by a neutron, charged particle, or photon.
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