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.
And anti-trust federal regulators? Anthony D'alessandro, Deadline, 26 Dec. 2025 Waymo didn’t immediately respond to a request for comment, or say whether regulators required its service pause on Thursday given the flash flood warnings. Lora Kolodny,leslie Josephs, CNBC, 25 Dec. 2025 Reporting by The Sacramento Bee and other outlets showed that Yolo County building officials, Cal Fire regulators and the local fire chief were aware fireworks were being stored at the site but did not ensure the operation met safety standards. Daniel Lempres, Sacbee.com, 24 Dec. 2025 As long as the money from cannabis sales could be construed under federal law as the proceeds of a crime, banks that do business with dispensaries must file scores of individual reports, alerting regulators that the transactions might not comply with both federal and state laws. Hannah Parker, NBC news, 24 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 31 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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