mesocecum
noun
                                                                                
                                                            me·so·ce·cum
                    
                                                        
            
            variants  
 or chiefly British mesocaecum    
        
    
            
               plural mesoceca or chiefly British mesocecaeca
                                        -kə 
    
            
        
    
                                
              
          
                                                      : the fold of peritoneum attached to the cecum                                      
                
                    
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  Merriam-Webster unabridged




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