"plumbings" in the noun sense
1. plumbing, plumbing system
utility consisting of the pipes and fixtures for the distribution of water or gas in a building and for the disposal of sewage
2. plumbing, plumbery
the occupation of a plumber (installing and repairing pipes and fixtures for water or gas or sewage in a building)
3. bathymetry, plumbing
measuring the depths of the oceans
Source: WordNet® (An amazing lexical database of English)
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