periodicity
noun
pe·ri·od·ic·i·ty
ˌpir-ē-ə-ˈdi-sə-tē 
: the quality, state, or fact of being regularly recurrent or having periods
Examples of periodicity in a Sentence
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Experiments have been done to see whether blank optical media could be used to cheaply and efficiently imprint these nanostructures, but the periodicity of the pattern on a blank disc wasn’t very effective at trapping photons.
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IEEE Spectrum, 25 Nov. 2014
The next rung of the ladder involves finding distant Cepheids and comparing their intrinsic luminosity (obtained using their periodicity) to their observed luminosity to estimate distances to their host galaxies.
—Anil Ananthaswamy, Scientific American, 1 Apr. 2025
For a school that plays the part with unenviable periodicity, this one might be the hardest.
—Brendan Quinn, New York Times, 8 Apr. 2025
The distance and periodicity measurements are used to calibrate the intrinsic characteristics of Cepheids.
—Anil Ananthaswamy, Scientific American, 1 Apr. 2025
See All Example Sentences for periodicity
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IEEE Spectrum, 25 Nov. 2014
The next rung of the ladder involves finding distant Cepheids and comparing their intrinsic luminosity (obtained using their periodicity) to their observed luminosity to estimate distances to their host galaxies.
—Anil Ananthaswamy, Scientific American, 1 Apr. 2025
For a school that plays the part with unenviable periodicity, this one might be the hardest.
—Brendan Quinn, New York Times, 8 Apr. 2025
The distance and periodicity measurements are used to calibrate the intrinsic characteristics of Cepheids.
—Anil Ananthaswamy, Scientific American, 1 Apr. 2025
See All Example Sentences for periodicity
Cite this Entry
“Periodicity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/periodicity. Accessed 20 Jul. 2025.
Copy CitationMedical Definition
periodicity
noun
pe·ri·od·ic·i·ty
ˌpir-ē-ə-ˈdis-ət-ē
plural periodicities
: the quality, state, or fact of being regularly recurrent or having periods
the periodicity of peptic ulcer is … characteristic of the disease—The Journal of the American Medical Association
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