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

The trip to the nation’s capital finds the mayor asking for the Ohio EPA to be primary regulator for Lakewood’s system and plan going forward. John Benson,, "Ohio EPA director visits Lakewood to see city’s stormwater management issues firsthand," 6 June 2019 Federal regulators voted Thursday to give phone companies the right to block unwanted calls without getting customers' permission first. Tali Arbel,, "FCC approves new weapon in war on robocalls. But 'then the scammers find a new way.'," 6 June 2019 Federal regulators are giving phone companies the right to block unwanted calls without getting customers' permission first. CBS News, "FCC paves the way for widespread blocking of robocalls," 6 June 2019 The new drone presents even more challenges for regulators because there aren’t standards yet for its robotic features. Alan Levin, Fortune, "Amazon Reveals Its Latest Delivery Drone Design," 5 June 2019 Federal regulators maintain a list of nursing homes that have a track recording of failing to meet care standards and are candidates for special regulatory scrutiny but are not selected for that program. Harold Brubaker,, "11 of nation’s most troubled nursing homes are in Philadelphia region, newly published list shows," 4 June 2019 Most recently, Argosy University in Eagan closed after federal regulators shut off student aid saying the school hadn’t properly distributed it to students. Christopher Magan, Twin Cities, "Globe University, Minnesota School of Business students should get loan refunds, appeals court rules," 3 June 2019 As part of the overhaul, the FRC will be folded into a new regulator called the audit, reporting and governance authority. Nina Trentmann, WSJ, "U.K. Regulator Fines KPMG Over Audit of Co-op Bank," 8 May 2019 This is something regulators would not have done prior to the financial crisis. Emily Stewart, Vox, "How close are we to another financial crisis? 8 experts weigh in.," 18 Sep. 2018

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

11 Jun 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).


incapable of being surmounted or overcome

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