plumbing
/ˈplʌmɪŋ/noun
The network of pipes, taps, tanks, and related fittings that carry water, gas, or waste through a building.
Example sentences
- “The plumbing in this old house needs to be completely replaced.”
- “We called a plumber because the plumbing made strange noises at night.”
From Latin 'plumbum', lead, because early pipes were made of it. The same root gives lead its chemical symbol, Pb.