<p><strong>Verb</strong></p><ul><li>to control or direct by a rule, principle, method, etc.: The statute is intended to regulate the business practices of architects by establishing a code of professional conduct.</li><li>to adjust to some standard or requirement, as amount, degree, etc.: A film was applied to the windows to help regulate the temperature and reduce glare.</li><li>to adjust so as to ensure accuracy of operation: If the watch is consistently off, it can be fixed relatively simply by regulating the beat rate.</li><li>to put or keep something in good order or within reasonable limits: Playful interactions with adult caregivers help children develop the ability to regulate their emotions and behavior.</li><li>Biology: to adjust or adapt (a bodily process or function) in response to external stimuli.</li><li>Genetics: to control the expression of (a gene or genes).</li></ul>