regulator

noun

reg·​u·​la·​tor ˈre-gyə-ˌlā-tər 

also ˈrā-

1

: one that regulates

2

: regulatory gene

Synonyms of regulator

• controller
• control

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

As with other major fires like Grenfell, pressure for answers may quickly spread beyond the construction firms to government regulators. —Jessie Pang, USA Today, 29 Nov. 2025

Approached for comment, regulator OFWAT referred CNN to the Environment Agency (EA), a government body. —Kara Fox, CNN Money, 29 Nov. 2025

The prosecutors also alleged that the agreement regarding the takeover bid for Mediobanca was concealed to regulators including the European Central Bank and the Italian market regulator, according to the newspaper report. —Sasha Rogelberg, Fortune, 27 Nov. 2025

The memo underscores that the issue is not a short-term operational setback but a deeper structural and safety problem with broad implications for UPS, FedEx, Boeing and federal regulators. —Robert Alexander, MSNBC Newsweek, 27 Nov. 2025

Word History

First Known Use

1648, in the meaning defined at sense 1

Phrases Containing regulator

• growth regulator
• regulator gene

Rhymes for regulator

• activator
• actuator
• agitator
• alligator
• allocator
• alternator
• animator
• annotator
• applicator
• arbitrator
• aspirator
• aviator

Medical Definition

regulator

noun

reg·​u·​la·​tor ˈreg-yə-ˌlāt-ər 

1

: one that regulates

2

: regulatory gene

Legal Definition

regulator

noun

reg·​u·​la·​tor ˈre-gyə-ˌlā-tər 

: one (as a government agency) that regulates