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English definition of “regulator”

regulator

noun [C]  /ˈreɡ·jəˌleɪ·t̬ər/ us  
a person or organization whose job is to control an activity or process and make certain that it operates as it should: Federal regulators prepare to set stricter rules for cars and fuel.
(Definition of regulator from the Cambridge Academic Content Dictionary © Cambridge University Press)
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