1. 
   periplasm
   The space between the membrane and the cell wall of abacterium. ... (12 Dec 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?periplasm
   
   
2. 
   periplasm
   Type: Term Pronunciation: per′i-plazm Definitions: 1. The space between the cell membranes and the cell wall, in gram-negative bacteria; contains proteins secreted by the cell.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=67236
   
   

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