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.
The pack’s unusual hunting behavior caused panic among residents and ranchers in the state’s high rangeland north of Truckee, eventually leading state wildlife regulators to euthanize its three adult wolves and accidentally kill one of four juveniles in October. Sharon Bernstein, Sacbee.com, 12 Jan. 2026 The Danish pharma has stolen a march on its US rival Eli Lilly with the pill, which received approval from the US regulator just before Christmas, said Julia Kollewe in The Guardian. The Week Uk, TheWeek, 11 Jan. 2026 For now, lawmakers and regulators should do no harm. The Editorial Board, Chicago Tribune, 11 Jan. 2026 That has come down in the last year as the central bank lowered benchmark rates, but is near the highs since federal regulators started tracking credit card rates in the mid-1990s. Ken Sweet, Los Angeles Times, 10 Jan. 2026 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 22 Jan. 2026.

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
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