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

The Amazon-like company has been subjected to a number of investigations, raids, and inspections initiated by the Korea Fair Trade Commission, the country’s primary antitrust regulator, in recent years. —David Zimmermann, The Washington Examiner, 6 Feb. 2026

Regulate body function Oregano oil is an all-purpose regulator that helps the body function properly. —Bestreviews, Chicago Tribune, 5 Feb. 2026

The matter was an area of questioning in a hearing on Tuesday, where state environment and safety regulators testified before the Nevada Legislature’s Interim Standing Committee on Growth and Infrastructure. —Jessica Mathews, Fortune, 5 Feb. 2026

China’s antitrust regulator launched an investigation into the deal, soon putting it on thin ice. —Glenn Taylor, Sourcing Journal, 5 Feb. 2026

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