regulate

verb

reg·​u·​late ˈre-gyə-ˌlāt How to pronounce regulate (audio)
 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 How to pronounce regulate (audio)
 also  ˈrā-
adjective
regulatory
ˈre-gyə-lə-ˌtȯr-ē How to pronounce regulate (audio)
 also  ˈrā-
adjective

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
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.
Under the Constitution’s Elections Clause, judges cannot intrude on state lawmakers’ authority to regulate federal elections, but the high court’s decision did not set a specific test for determining when that boundary is crossed. Zach Schonfeld, The Hill, 21 Jan. 2025 The commerce clause is the provision in the constitution that gives Congress the authority to regulate interstate economic activity and commerce with foreign nations. Tax Notes Staff, Forbes, 21 Jan. 2025 Trump’s executive order, signed Monday evening, guts the 2023 executive order that Biden issued to regulate AI. Zach Halaschak, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 21 Jan. 2025 The dye, which has been registered with and regulated by the U.S. Food and Drug Administration since 1971, is used by food manufacturers to achieve a bright red color. Hannah Yasharoff, USA TODAY, 21 Jan. 2025 See all Example Sentences for regulate 

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

Time Traveler
The first known use of regulate was in the 15th century

Dictionary Entries Near regulate

Cite this Entry

“Regulate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/regulate. Accessed 24 Jan. 2025.

Kids Definition

regulate

verb
reg·​u·​late ˈreg-yə-ˌlāt How to pronounce regulate (audio)
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 How to pronounce regulate (audio)
-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 How to pronounce regulate (audio)
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 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

More from Merriam-Webster on regulate

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