1. 
   Occludent
   Oc·clud'ent adjective [ Latin occludens , present participle of occludere .] Serving to close; shutting up. -- noun That which closes or shuts up. Sterne.
   Found op http://www.encyclo.co.uk/webster/O/8
   
   
2. 
   Occludent
   • (a.) Serving to close; shutting up. • (n.) That which closes or shuts up.
   Found op http://thinkexist.com/dictionary/meaning/occludent/
   
   

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