plumbing plumbing /ˈplʌmɪŋ/

noun

1. () Utility consisting of the pipes and fixtures for the distribution of water or gas in a building and for the disposal of sewage  ( plumbing system , plumbing )
   utility consisting of the pipes and fixtures for the distribution of water or gas in a building and for the disposal of sewage
   
2. () The occupation of a plumber (installing and repairing pipes and fixtures for water, gas or sewage in a building)  ( plumbery , plumbing )
   the occupation of a plumber (installing and repairing pipes and fixtures for water, gas or sewage in a building)
   
3. Measuring the depths of the oceans  ( bathymetry , plumbing )
   measuring the depths of the oceans