Definition of regulate verb from the Oxford Advanced Learner's Dictionary

      

    regulate

     verb
    verb
    BrE BrE//ˈreɡjuleɪt//
     
    ; NAmE NAmE//ˈreɡjuleɪt//
     
    Verb Forms present simple I / you / we / they regulate
    BrE BrE//ˈreɡjuleɪt//
     
    ; NAmE NAmE//ˈreɡjuleɪt//
     
    he / she / it regulates
    BrE BrE//ˈreɡjuleɪts//
     
    ; NAmE NAmE//ˈreɡjuleɪts//
     
    past simple regulated
    BrE BrE//ˈreɡjuleɪtɪd//
     
    ; NAmE NAmE//ˈreɡjuleɪtɪd//
     
    past participle regulated
    BrE BrE//ˈreɡjuleɪtɪd//
     
    ; NAmE NAmE//ˈreɡjuleɪtɪd//
     
    -ing form regulating
    BrE BrE//ˈreɡjuleɪtɪŋ//
     
    ; NAmE NAmE//ˈreɡjuleɪtɪŋ//
     
     
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  1. 1[transitive, intransitive] regulate (something) to control something by means of rules The activities of credit companies are regulated by law. The government accepts whaling in principle as long as it is carefully regulated. It is up to the regulating authority to put the measures into effect.
  2. 2[transitive] regulate something to control the speed, pressure, temperature, etc. in a machine or system This valve regulates the flow of water.
  3. Word Origin late Middle English (in the sense ‘control by rules’): from late Latin regulat- ‘directed, regulated’, from the verb regulare, from Latin regula ‘rule’.Extra examples Tobacco is a federally regulated product. a code of conduct intended to regulate press reporting on the royal family a highly regulated economy The Council was set up to regulate the fishing industry. The trade in these animals is highly regulated. There have been several unsuccessful attempts to regulate working conditions.
See the Oxford Advanced American Dictionary entry: regulate