1. 
   Fistulate
   Fis'tu·late transitive verb & i. [ Confer Latin fistulatus furnished with pipes.] To make hollow or become hollow like a fistula, or pipe. [ Obsolete] 'A fistulated ulcer.' Fuller.
   Found op http://www.encyclo.co.uk/webster/F/35
   
   
2. 
   Fistulate
   • (v. t. & i.) To make hollow or become hollow like a fistula, or pipe.
   Found op http://thinkexist.com/dictionary/meaning/fistulate/
   
   
3. 
   fistulate
   fistulate 1. To make hollow or become hollow like a fistula, or pipe. 2. Like a reed or tube. 3. Containing tubes or tube-like parts.
   Found op http://www.wordinfo.info/words/index/info/view_unit/829/
   
   
4. 
   fistulate
   1) Fistular 2) Fistulous 3) Hollow
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/fistulate/1
   
   

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