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English definition of “plumbing”

plumbing

noun [U]     /ˈplʌmɪŋ/
a system that allows information, money, etc. to move easily from one place to another: Efficient banks are an essential part of the financial plumbing of any developing country. Cisco's products are largely invisible, but form part of the basic plumbing of the internet.
(Definition of plumbing noun from the Cambridge Business English Dictionary © Cambridge University Press)
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