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columbium

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columbium


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Columbium  \Co*lum"bi*um\,  n.  [NL.,  fr  Columbia  America.] 
  (Chem.) 
  A  rare  element  of  the  vanadium  group  first  found  in  a 
  variety  of  the  mineral  columbite  occurring  in  Connecticut, 
  probably  at  Haddam.  Atomic  weight  94.2.  Symbol  Cb  or  Nb  Now 
  more  commonly  called  {niobium}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  columbium 
  n  :  a  former  name  for  niobium 
 
  From  Elements  database  20001107  [elements]: 
 
  columbium 
  The  original  name  for  {niobium}. 
 
 




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