DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   oriented structural board /ˈɔːɹiəntɪd stɹˈʌktʃəɹəl bˈɔːd/ (OSB /ˈɒsb/)
   Grobspanplatte <fem>, OSB-Platte <fem> [constr.]
         "oriented structural boards"  - Grobspanplatten, OSB-Platten
      Synonyms: oriented strand board, wafer board
    see: wafer boards