regulate

verb

reg·​u·​late ˈre-gyə-ˌlāt 

 also  ˈrā-

regulated; regulating

transitive verb

1

a

: to govern or direct according to rule

b(1)

: to bring under the control of law or constituted authority

(2)

: to make regulations for or concerning

regulate the industries of a country

2

: to bring order, method, or uniformity to

regulate one's habits

3

: to fix or adjust the time, amount, degree, or rate of

regulate the pressure of a tire

regulative

ˈre-gyə-ˌlā-tiv 

 also  ˈrā-

adjective

regulatory

ˈre-gyə-lə-ˌtȯr-ē 

 also  ˈrā-

adjective

Synonyms

• bridle
• check
• constrain
• contain
• control
• curb
• govern
• hold
• inhibit
• keep
• measure
• pull in
• rein (in)
• restrain
• rule
• tame

Examples of regulate in a Sentence

The dam regulates the flow of water into the river.

We need better laws to regulate the content of the Internet.

Laws have been made to regulate working conditions.

The government regulates how much lead may be found in our water supply.

The department regulates foreign trade.

Recent Examples on the Web

It has been finely regulated by Hanhart to ensure a precision rate of 0 to +8 seconds per day across all positions. —Matthew Catellier, Forbes, 23 Oct. 2024

Disclosure is important, Kushner said, but the federal government leaves it to the states to regulate the terms and conditions that lenders offer. —Jon Healey, Los Angeles Times, 22 Oct. 2024

Algorithmic harms With artificial intelligence now widespread, governments worldwide are grappling with how to regulate various aspects of the technology. —Anjana Susarla, Quartz, 21 Oct. 2024

Carnosine is a dipeptide that regulates the pH of muscles, helping to limit muscle fatigue and improve exercise performance.2 Research on beta-alanine's effects on muscle growth and exercise performance offers inconsistent results. —Mary Choy, Health, 21 Oct. 2024

Word History

Etymology

Middle English, from Late Latin regulatus, past participle of regulare, from Latin regula rule

First Known Use

15th century, in the meaning defined at sense 1a

Phrases Containing regulate

• re-regulate
• self-regulate

Kids Definition

regulate

verb

reg·​u·​late ˈreg-yə-ˌlāt 

regulated; regulating

1

a

: to govern or direct according to rule

b

: to bring under the control of authority

regulate prices

2

: to bring order or method to

regulate one's habits

3

: to fix or adjust the time, amount, degree, or rate of

regulate the pressure of a tire

the brain regulates the heartbeat

regulator

-ˌlāt-ər

noun

regulatory

-lə-ˌtōr-ē 

-ˌtȯr-

adjective

Etymology

from Latin regulatus, past participle of regulare "to regulate, direct," from regula "a rule, straightedge" — related to rail entry 1, regent, rule

Medical Definition

regulate

transitive verb

reg·​u·​late ˈreg-yə-ˌlāt 

regulated; regulating

1

: to control or direct according to rule or law

regulate the testing of experimental drugs

2

: to fix or adjust the time, amount, degree, or rate of

regulatory

-lə-ˌtōr-ē, -ˌtȯr- 

adjective

Legal Definition

regulate

transitive verb

reg·​u·​late

regulated; regulating

1

: to govern or direct according to rule

2

a

: to bring under the control of law

b

: to make regulations for or concerning