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borax

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borax


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Borax  \Bo"rax\,  n.  [OE.  boras,  fr  F.  borax,  earlier  spelt 
  borras;  cf  LL  borax,  Sp  borraj  all  fr  Ar  b?rag,  fr 
  Pers.  b?rah.] 
  A  white  or  gray  crystalline  salt,  with  a  slight  alkaline 
  taste,  used  as  a  flux,  in  soldering  metals,  making  enamels, 
  fixing  colors  on  porcelain,  and  as  a  soap.  It  occurs  native 
  in  certain  mineral  springs,  and  is  made  from  the  boric  acid 
  of  hot  springs  in  Tuscany.  It  was  originally  obtained  from  a 
  lake  in  Thibet,  and  was  sent  to  Europe  under  the  name  of 
  tincal.  Borax  is  a  pyroborate  or  tetraborate  of  sodium, 
  Na2B4O7.10H2O. 
 
  {Borax  bead}.  (Chem.)  See  {Bead},  n.,  3. 
 
  From  WordNet  r  1.6  [wn]: 
 
  borax 
  n  :  an  ore  of  boron  consisting  of  hydrated  sodium  borate;  used 
  as  a  flux  or  cleansing  agent 




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