Meaning of “regulation” in the English Dictionary

"regulation" in British English

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regulationnoun [ C or U ]

uk /ˌreɡ.jəˈleɪ.ʃən/ us /ˌreɡ.jəˈleɪ.ʃən/

B2 an official rule or the act of controlling something:

The correct procedure is laid down in the rules and regulations.
government regulation of inflation

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uk /ˌreɡ.jəˈleɪ.ʃən/ us /ˌreɡ.jəˈleɪ.ʃən/

(Definition of “regulation” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"regulation" in American English

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regulationnoun [ C/U ]

us /ˌreɡ·jəˈleɪ·ʃən/

biology [ U ] the chemical and nerve processes that allow people to adjust to changes in themselves and their environment so that they can continue to live

the rules or systems that are used by a person or organization to control an activity or process, or the action of controlling the activity or process:

[ C ] federal safety regulations
[ U ] She favors government regulation of health-care systems.

(Definition of “regulation” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"regulation" in Business English

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uk /ˌreɡjəˈleɪʃən/ us

[ C ] LAW, GOVERNMENT an official rule or law:

They are introducing new policies and regulations for e-commerce.
There are far too many rules and regulations.

[ U ] LAW, GOVERNMENT the activity of checking that a business is following official rules or laws:

This affects the operation and regulation of the accounting profession.
They are looking at the replacement of government regulation by self-regulation and market mechanisms.

regulationadjective [ before noun ]

uk /ˌreɡjəˈleɪʃən/ us WORKPLACE

used to describe official clothes or equipment used by people in a particular type of work:

All flight attendants are required to wear regulation uniform.
Security staff are issued with regulation kit.

(Definition of “regulation” from the Cambridge Business English Dictionary © Cambridge University Press)