reg·​u·​la·​tor | \ˈre-gyə-ˌlā-tər also ˈrā- \

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

With these data in hand, the company plans to submit approval applications to regulators in the U.S. and Europe during the fourth quarter. Adam Feuerstein, STAT, "Zogenix to submit anti-seizure drug for approval after clinical trial confirms benefit," 12 July 2018 In April, Sinclair announced plans to sell 23 stations after the merger as part of its bid to win approval of federal regulators. Lorraine Mirabella,, "Sinclair Broadcast will reportedly launch a free streaming TV service this year," 11 July 2018 Meanwhile, Micron and its Korean rivals are still facing an investigation by a Chinese antitrust regulator. David Staats And Ian King, idahostatesman, "A Chinese court just retaliated against Boise's Micron. Here's why, and what it means," 5 July 2018 Last summer, Steward reported the disciplinary action to state and federal regulators, and to health insurers, which Zappala said caused his practice — and income — to shrink dramatically. Liz Kowalczyk,, "Steward Health Care pressured doctors to restrict referrals outside chain, suit says," 24 May 2018 The process slowed as various British regulators debated whether owning the service, and its popular Sky News channel, would give the Murdoch family too much control over media in Britain. Meg James,, "Comcast offers $34 billion for Sky TV, topping a bid from Fox," 11 July 2018 The company will also be assigned an auditor designated by regulators for three years starting in 2019. Timothy W. Martin, WSJ, "South Korea Regulator Says Samsung BioLogics Violated Accounting Rules," 12 July 2018 IndyMac Bank’s assets were seized by federal regulators., "This day in history," 11 July 2018 More than a month after opening for the 2018 season, four rides at the Schlitterbahn water park in Kansas City, Kan., remain closed to visitors after an audit by regulators found that each did not comply with the Kansas Amusement Ride Act. Steve Vockrodt, kansascity, "A month after Schlitterbahn's opening, four rides remain closed at the KCK water park," 10 July 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

12 Nov 2018

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 \

Medical Definition of regulator 

1 : one that regulates


reg·​u·​la·​tor | \ˈre-gyə-ˌlā-tər \

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).


playful or foolish behavior

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