browse words by letter
a b c d e f g h i j k l m n o p q r s t u v w x y z
erbium

more about erbium

erbium


  4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Erbium  \Er"bi*um\,  n.  [NL.  Named  from  Ytterby  in  Sweden,  where 
  gadolinite  is  found  Cf  {Terbium},  {Yttrium},  {Ytterbium}.] 
  (Chem.) 
  A  metallic  element  of  the  rare  earth  group  found  in 
  gadolinite  and  some  other  minerals.  Symbol,  Er  at  wt 
  167.4.  Its  salts  are  rose-colored  and  give  characteristic 
  spectra. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Erbium  \Er"bi*um\,  n.  [NL.  from  Ytterby  in  Sweden,  where 
  gadolinite  is  found  Cf  {Terbium},  {Yttrium},  {Ytterbium}.] 
  (Chem.) 
  A  rare  metallic  element  associated  with  several  other  rare 
  elements  in  the  mineral  gadolinite  from  Ytterby  in  Sweden. 
  Symbol  Er  Atomic  weight  165.9.  Its  salts  are  rose-colored 
  and  give  characteristic  spectra.  Its  sesquioxide  is  called 
  erbia 
 
  From  WordNet  r  1.6  [wn]: 
 
  erbium 
  n  :  a  trivalent  metallic  element  of  the  rare  earth  group  occurs 
  with  yttrium  [syn:  {Er},  {atomic  number  68}] 
 
  From  Elements  database  20001107  [elements]: 
 
  erbium 
  Symbol:  Er 
  Atomic  number:  68 
  Atomic  weight:  167.26 
  Soft  silvery  metallic  element  which  belongs  to  the  lanthanoids.  Six 
  natural  isotopes  that  are  stable.  Twelve  artificial  isotopes  are  known 
  Used  in  nuclear  technology  as  a  neutron  absorber.  It  is  being  investigated 
  for  other  possible  uses.  Discovered  by  Carl  G.  Mosander  in  1843. 
 
 




more about erbium