DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   separating layers /sˈɛpəɹˌeɪtɪŋ lˈeɪəz/
   Trennschichten <pl>
      Synonyms: separation layers, partings
    see: separating layer, separation layer, parting