1
                    
                                          
              
          
                                                      : the act of using a plumb                                      
                
                    
2
                    
                                          
              
          
                                                      : a plumber's occupation or trade                                      
                
                    
3
                    
        a
    
          
                                          
              
          
                                                      : the apparatus (such as pipes and fixtures) concerned in the distribution and use of water in a building                                      
                
                    
        b
    
          
                                          
              
          
                                                      : an internal system that resembles plumbing                                      
                
                                
            especially                
          
                                                      : one consisting of conduits or channels for conveying fluids                                      
            
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  Merriam-Webster unabridged




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