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collodion

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collodion


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Collodion  \Col*lo"di*on\,  n.  [Gr.  ?  like  glue;  ko`lla  glue  +  ? 
  form  Cf  {Colloid}.]  (Chem.) 
  A  solution  of  pyroxylin  (soluble  gun  cotton)  in  ether 
  containing  a  varying  proportion  of  alcohol.  It  is  strongly 
  adhesive,  and  is  used  by  surgeons  as  a  coating  for  wounds; 
  but  its  chief  application  is  as  a  vehicle  for  the  sensitive 
  film  in  photography. 
 
  {Collodion  process}  (Photog.),  a  process  in  which  a  film  of 
  sensitized  collodion  is  used  in  preparing  the  plate  for 
  taking  a  picture. 
 
  {Styptic  collodion},  collodion  containing  an  astringent,  as 
  tannin. 




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