different between stopcock vs plumbing

English

stop +? cock

stopcock (plural stopcocks)

A valve, tap or faucet which regulates the flow of liquid or gas through a pipe.
(Britain) A main shutoff for water to a home from a municipal supply. Usually these valves exist in pairs, one outside the property boundary and one inside the property boundary.
If you have a burst pipe turn the water off at the stopcock.

plumbing (countable and uncountable, plural plumbings)

The pipes, together with the joints, tanks, stopcocks, taps and other fixtures of a water, gas or sewage system in a house or other building.
The trade or occupation of a plumber.
(informal) A system of vessels or ducts in the human body, especially the genitourinary system.
My plumbing was playing up, so I had to see the doctor.
(informal, figuratively) Practical, concrete work serving to support other work.
This is not scientific research as such: it's just plumbing.
(countable) A Murasugi sum where each disk summed along has its boundary subdivided into four segments.

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