1. 
   photobleach
   To lose colour or make white by the action of light; e.g., the use of a laser to bleach a fluorescent dye covalently linked to a macromolecule. ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?photobleach
   
   
2. 
   photobleach
   Type: Term Pronunciation: fō′tō-blēch Definitions: 1. To lose color or whiten by the action of light; the use of a laser to bleach a fluorescent dye covalently linked to a macromolecule.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=68587
   
   

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