modulation

noun

mod·​u·​la·​tion ˌmä-jə-ˈlā-shən How to pronounce modulation (audio)
1
: an inflection of the tone or pitch of the voice
specifically : the use of stress or pitch to convey meaning
2
: a regulating according to measure or proportion : tempering
3
: a change from one musical key to another by modulating
4
: the process of modulating a carrier or signal (as in radio)
also : the result of this process

Examples of modulation in a Sentence

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.
According to Stengel, it is assumed that the effect is achieved via modulation of inflammatory processes, nerve activity, and the regulation of stress hormones such as cortisol and neurotransmitters such as serotonin and dopamine—all of which happens along the gut-brain axis. Desireé Oostland, Vogue, 17 July 2025 These imprints manifest as specific modulations in the probing light’s frequency, amplitude, phase and polarization. Pravir Malik, Forbes.com, 10 July 2025 So those were all written into the backbone of the story, but then the modulation became my job of finding the inner world. Josh Wigler, The Hollywood Reporter, 27 Feb. 2025 In lupus—where the immune system mistakenly attacks healthy tissue—this modulation may help reduce flare-ups and symptom severity. Tribune Content Agency, Mercury News, 20 May 2025 See All Example Sentences for modulation

Word History

First Known Use

1501, in the meaning defined at sense 1

Time Traveler
The first known use of modulation was in 1501

Cite this Entry

“Modulation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/modulation. Accessed 25 Jul. 2025.

Kids Definition

modulation

noun
mod·​u·​la·​tion ˌmäj-ə-ˈlā-shən How to pronounce modulation (audio)
1
: an action of modulating
2
: the extent or degree by which something is modulated
3
: a change from one musical key to another by using a chord that is found in both keys
4
: the process of modulating a carrier wave or signal (as in radio)
also : the result of this process

Medical Definition

modulation

noun
mod·​u·​la·​tion ˌmäj-ə-ˈlā-shən How to pronounce modulation (audio)
1
: the act or process of modulating
2
: a reversible change in histological structure due to physiological factors
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