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.
Environmental groups argued Thursday state regulators erred by voting late last year to let Georgia Power add historic amounts of electricity capacity to serve data centers, arguing the company didn’t prove all of the power supplies were needed. Drew Kann, AJC.com, 13 Feb. 2026 When Health Net, a California nonprofit health maintenance organization, converted to a for-profit insurance company in 1992, regulators required that 80% of its equity be transferred to another nonprofit health foundation. Alnoor Ebrahim, The Conversation, 13 Feb. 2026 Commercial prediction markets have resisted efforts by states to classify and regulate them as gambling companies, insisting that they — like their precursor in Iowa — should be overseen by federal regulators. Suzy Khimm, NBC news, 13 Feb. 2026 Why regulators said no Carolina Water Service argued it should be allowed to impose temporary rates while its broader rate increase request remains under review. Nora O'Neill, Charlotte Observer, 13 Feb. 2026 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 15 Feb. 2026.

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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