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.
Then came the president’s decision to install Bill Pulte, a housing regulator and political bomb-thrower, as acting director of national intelligence. Jason Willick, Washington Post, 6 June 2026 Two years ago, Dominion signaled its intention to seek approval from federal regulators to continue operating Millstone until 2065. John Moritz, Hartford Courant, 6 June 2026 Clearing regulators took about a year, on three continents, which says plenty about how much Google wanted it. Dara-Abasi Ita, Forbes.com, 6 June 2026 The central bank also said that the limits for investment in stocks, without registration with India’s capital market regulator, are being increased for non-resident Indians and those holding overseas citizenship of India. Priyanka Salve, CNBC, 5 June 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 11 Jun. 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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster