1. 
   slab-off
   A process by which prism base-up is produced in the reading field of a spectacle lens through bicentric grinding. ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?slab-off
   
   
2. 
   slab-off
   Type: Term Pronunciation: slab-of′ Definitions: 1. A process by which prism base-up is produced in the reading field of a spectacle lens through bicentric grinding.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=82489
   
   

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