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  2  definitions  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Nickel  \Nick"el\,  n.  [G.,  fr  Sw  nickel,  abbrev.  from  Sw 
  kopparnickel  copper-nickel,  a  name  given  in  derision,  as  it 
  was  thought  to  be  a  base  ore  of  copper.  The  origin  of  the 
  second  part  of  the  word  is  uncertain.  Cf  {Kupfer-nickel}, 
  1.  (Chem.)  A  bright  silver-white  metallic  element.  It  is  of 
  the  iron  group  and  is  hard,  malleable,  and  ductile.  It 
  occurs  combined  with  sulphur  in  millerite,  with  arsenic  in 
  the  mineral  niccolite,  and  with  arsenic  and  sulphur  in 
  nickel  glance.  Symbol  Ni  Atomic  weight  58.6. 
  Note:  On  account  of  its  permanence  in  air  and  inertness  to 
  oxidation,  it  is  used  in  the  smaller  coins,  for  plating 
  iron,  brass,  etc.,  for  chemical  apparatus,  and  in 
  certain  alloys,  as  german  silver.  It  is  magnetic,  and 
  is  very  frequently  accompanied  by  cobalt,  both  being 
  found  in  meteoric  iron. 
  2.  A  small  coin  made  of  or  containing  nickel;  esp.,  a 
  five-cent  piece.  [Colloq.  U.S.] 
  {Nickel  silver},  an  alloy  of  nickel,  copper,  and  zinc;  -- 
  usually  called  {german  silver};  called  also  {argentan}. 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Argentan  \Ar"gen*tan\,  n. 
  An  alloy  of  nickel  with  copper  and  zinc;  German  silver.