reg·​u·​la·​tor | \ ˈre-gyə-ˌlā-tər also ˈrā- How to pronounce regulator (audio) \

Definition of regulator

1 : one that regulates

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Synonyms for regulator


control, controller

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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

About three dozen states require health insurers to report suspected cases of fraud to regulators. Marshall Allen, ProPublica, "How to Make Health Insurers Take Fraud Seriously," 10 Sep. 2019 In Hurricane Irma in 2017, 90 percent of FPL’s customers, or 4.4 million homes and businesses, lost power, according to FPL’s report to regulators. Marcia Heroux Pounds,, "FPL warns Hurricane Dorian can still cause extensive power problems," 31 Aug. 2019 The tech giants’ use of human reviewers has spurred examinations by lawmakers and regulators in the United States and Europe. Los Angeles Times, "Apple apologizes for Siri privacy issue and quits keeping audio recordings," 28 Aug. 2019 Kelly Mazzei, excise tax manager with the Revenue Department, in a letter to marijuana regulators earlier this year called the number of late accounts alarming. Becky Bohrer, Anchorage Daily News, "As marijuana prices tumble, Alaska’s licensed growers worry about taxes," 28 Aug. 2019 Lady Kidron’s efforts are part of a drive by lawmakers and regulators on both sides of the Atlantic to rein in the immense power, and data abuses, of Big Tech. New York Times, "The Baroness Fighting to Protect Children Online," 27 Aug. 2019 Williams’s ex-wife, Amy Lankford, and her father, Jim Pratte, discovered the fraud by happenstance and reported it to regulators and the insurers for years. Marshall Allen, Vox, "Senators call for closing “loopholes” that make health care fraud easy," 14 Aug. 2019 Kramer said while there are laws, regulations and processes in place for pulling online support services from websites like those used for child pornography, lawmakers and regulators have been less active in creating processes for sites like 8chan. Donie O'sullivan, CNN, "US company helping keep 8chan online has no plans to stop working with the site," 4 Aug. 2019 The allegations could intensify scrutiny on Amazon by lawmakers and regulators in the U.S. who are looking at antitrust issues. Fortune, "EBay Sues Amazon Employees for Alleged ‘Racketeering Scheme’," 1 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'regulator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of regulator

1648, in the meaning defined at sense 1

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Statistics for regulator

Last Updated

17 Sep 2019

Look-up Popularity

Time Traveler for regulator

The first known use of regulator was in 1648

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More Definitions for regulator



English Language Learners Definition of regulator

: a device for controlling the level or amount of something (such as speed or temperature)
: an official who works for the part of the government that controls a public activity (such as banking or insurance) by making and enforcing rules


reg·​u·​la·​tor | \ ˈreg-yə-ˌlāt-ər How to pronounce regulator (audio) \

Medical Definition of regulator

1 : one that regulates


reg·​u·​la·​tor | \ ˈre-gyə-ˌlā-tər How to pronounce regulator (audio) \

Legal Definition of regulator

: one (as a government agency) that regulates

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Comments on regulator

What made you want to look up regulator? Please tell us where you read or heard it (including the quote, if possible).


to spread over or through

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