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regulator

noun

reg·​u·​la·​tor ˈre-gyə-ˌlā-tər How to pronounce regulator (audio)
also ˈrā-
Synonyms of regulatornext
1
: one that regulates
2

Examples of regulator in a Sentence

the voltage regulator will make sure your car's alternator gets the right amount of electricity
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
European Union regulators on Friday fined X, Elon Musk’s social media platform, 120 million euros ($140 million) for breaches of the bloc’s digital regulations, in a move that risks rekindling tensions with Washington over free speech. Fortune, 6 Dec. 2025 Higher scrutiny Though PBMs came into existence around 60 years ago, lawmakers and regulators have leveled greater scrutiny in recent years as PBMs consolidated and merged with other health care companies — and as pharmacy owners complained that PBMs reimbursed them too little to survive. Sacbee.com, 6 Dec. 2025 If regulators believe Netflix is about growth and dominance, perhaps not. David Goldman, CNN Money, 6 Dec. 2025 Federal regulators have announced that Greystar, one of the largest landlords in metro Atlanta, misled tenants about their rental costs and has agreed to pay $24 million in restitution. Zachary Bynum, CBS News, 5 Dec. 2025 See All Example Sentences for regulator

Word History

First Known Use

1648, in the meaning defined at sense 1

Time Traveler
The first known use of regulator was in 1648

Cite this Entry

“Regulator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/regulator. Accessed 8 Dec. 2025.

Medical Definition

regulator

noun
reg·​u·​la·​tor ˈreg-yə-ˌlāt-ər How to pronounce regulator (audio)
1
: one that regulates
2

Legal Definition

regulator

noun
reg·​u·​la·​tor ˈre-gyə-ˌlā-tər How to pronounce regulator (audio)
: one (as a government agency) that regulates

More from Merriam-Webster on regulator

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