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

Definition of regulator

1 : one that regulates

Keep scrolling for more

Synonyms for regulator


control, controller

Visit the Thesaurus for More 

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

Filing false statements to regulators regarding income from Nissan deferred until retirement – a total of $80 million. Washington Post, "Why Ghosn’s Back in Jail and What It Says About Japan," 18 Sep. 2019 In France shortages in medications increased 20-fold between 2008 and 2018, according to the country’s drug regulator. The Economist, "A dire scarcity of drugs is worsening, in part, because they are so cheap," 14 Sep. 2019 On Friday, Google disclosed to financial regulators that the Justice Department had requested documents related to past antitrust investigations into the company. Steve Lohr, New York Times, "New Google and Facebook Inquiries Show Big Tech Scrutiny Is Rare Bipartisan Act," 6 Sep. 2019 The executive stressed the crux of the issue is whether the regulators decide to intensively investigate the situation and its effects throughout the music industry in China. Rob Schwartz, Billboard, "Chinese Music Industry Reacts to Tencent Music Investigation," 29 Aug. 2019 If a renegade pilot threatened the safety of passengers, an airline’s management — or the regulators from the FAA — would feel legally obliged to act. James Fallows, The Atlantic, "On Trump and Queeg: A Followup," 25 Aug. 2019 The first is its own fault: In 2015, VW’s reputation was shattered by the revelation that its brass had, for years, knowingly built diesel cars that spewed excessive pollution, and then repeatedly lied about it to regulators. Fortune, "Electric Car Gold Rush: The Auto Industry Charges Into China," 20 Aug. 2019 That may give ammunition to regulators at the Federal Trade Commission, which is currently looking into Amazon as part of a broad antitrust probe. Nick Statt, The Verge, "Amazon is encouraging third-party sellers to raise prices on Walmart or risk losing perks," 5 Aug. 2019 But regulators have so far proved eager to accommodate SpaceX's plans. Jackie Wattles, CNN, "SpaceX wants to beam internet across the American South by late 2020," 17 Sep. 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.

See More

First Known Use of regulator

1648, in the meaning defined at sense 1

Keep scrolling for more

Learn More about regulator

Statistics for regulator

Last Updated

15 Oct 2019

Look-up Popularity

Time Traveler for regulator

The first known use of regulator was in 1648

See more words from the same year

Keep scrolling for more

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

Keep scrolling for more

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).


tired or exhausted

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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