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  1  definition  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Fulguration  \Ful"gu*ra`tion\,  n.  [L.  fulguratio:  cf  F. 
  1.  The  act  of  lightening.  [R.]  --Donne. 
  2.  (Assaying)  The  sudden  brightening  of  a  fused  globule  of 
  gold  or  silver,  when  the  last  film  of  the  oxide  of  lead  or 
  copper  leaves  its  surface;  --  also  called  {blick}. 
  A  phenomenon  called  by  the  old  chemists, 
  fulguration.  --Ure.