dielectric constant

noun

: permittivity

Examples of dielectric constant 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.
When a wave meets a boundary between materials with different dielectric constants, part of the wave is reflected, and part is transmitted. — IEEE Spectrum, 15 Mar. 2025 Some, such as hexagonal boron nitride, can act as gate dielectrics, having a dielectric constant similar to that of silicon dioxide, which was routinely used for that job until about a decade ago. — IEEE Spectrum, 21 Jan. 2020 Polymer capacitors have great development potential to achieve higher ratings on density, field stress and temperature (yet currently limited to 125°C) due to their working mechanism and dielectric materials advancement, yet higher dielectric constant polymers enable a high energy density. — IEEE Spectrum, 1 Nov. 2018 To solve this mystery, scientists used Mini-RF to measure the electrical property, known as the dielectric constant, of lunar soil on crater floors in the northern hemisphere of the moon. — Fox News, 7 July 2020

Word History

First Known Use

1875, in the meaning defined above

Time Traveler
The first known use of dielectric constant was in 1875

Rhymes for dielectric constant

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Browse Nearby Words

dielectric absorption
dielectric constant
dielectric heating
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Cite this Entry

“Dielectric constant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dielectric%20constant. Accessed 30 Mar. 2025.

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More from Merriam-Webster on dielectric constant

Britannica.com: Encyclopedia article about dielectric constant

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