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chromium

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chromium


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Chromium  \Chro"mi*um\,  n.  [NL.,  fr  Gr  ?  color.]  (Chem.) 
  A  comparatively  rare  element  occurring  most  abundantly  in  the 
  mineral  chromite.  Atomic  weight  52.5.  Symbol  Cr  When 
  isolated  it  is  a  hard,  brittle,  grayish  white  metal,  fusible 
  with  difficulty.  Its  chief  commercial  importance  is  for  its 
  compounds,  as  potassium  chromate,  lead  chromate,  etc.,  which 
  are  brilliantly  colored  and  are  used  dyeing  and  calico 
  printing.  Called  also  {chrome}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  chromium 
  n  :  a  hard  brittle  blue-white  multivalent  metallic  element; 
  resistant  to  corrosion  and  tarnishing  [syn:  {Cr},  {atomic 
  number  24}] 
 
  From  Elements  database  20001107  [elements]: 
 
  chromium 
  Symbol:  Cr 
  Atomic  number:  24 
  Atomic  weight:  51.996 
  Hard  silvery  transition  element.  Used  in  decorative  electroplating. 
  Discovered  in  1797  by  Vauquelin 
 
 




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