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.
In other words, regulators reached for a regulatory explanation—burdensome listing rules—for a phenomenon with structural economic roots. Shivaram Rajgopal, Forbes.com, 24 May 2026 That tradeoff has caught regulators’ attention. Sydney Lake, Fortune, 24 May 2026 Plus, federal regulators set limits on how much can be spent on construction and building renovations. Sarah Jane Tribble, NPR, 22 May 2026 However, in 2024, the regulator ruled that AT&T needed to continue supplying the landlines since it had been designated as a Carrier of Last Resort (COLR), legally requiring it to provide telephone services to anyone in its service territory who requests it. Michael Kan, PC Magazine, 21 May 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 28 May. 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

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