Definition of modulate verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
modulate (third-person singular simple present modulates, present participle modulating, simple past and past participle modulated) (transitive) To regulate, adjust or adapt (transitive) To change the pitch, intensity or tone of one's voice or of a musical instrument quotations
1. To regulate or adjust to a certain degree: physiological mechanisms that modulate the body's metabolic rate. 2. To change or vary the pitch, intensity, or tone of (one's voice or a musical instrument, for example). 3. Electronics a. To vary the frequency, amplitude, phase, or other characteristic of (electromagnetic waves).