di·​elec·​tric ˌdī-ə-ˈlek-trik How to pronounce dielectric (audio)
: a nonconductor of direct electric current
dielectric adjective

Examples of dielectric in a Sentence

Recent Examples on the Web The surrounding oxide dielectric bonds when the two chips are pressed together [middle]. IEEE Spectrum, 4 June 2024 Essentially, this accelerates an aging effect called time-dependent dielectric breakdown, which results in short circuits across the gate dielectric that kill the device. IEEE Spectrum, 28 Feb. 2024 In contrast, electrically insulating dielectric materials (stuff that doesn’t conduct electricity well but does support electrostatic fields well) can withstand light fields thousands of times stronger. IEEE Spectrum, 24 Oct. 2023 There are several types of dielectric used in advanced CMOS and several steps that involve etching it away. IEEE Spectrum, 25 May 2023 The materials are fabricated using ordinary metals and electrical insulators, or dielectrics. IEEE Spectrum, 3 Sep. 2022 The amount of power absorbed by the dielectric is often measured by something called the loss tangent. Chris Lee, Ars Technica, 15 Jan. 2018 In the case of a coaxial cable, the dielectric is usually chosen such that a 50Ohm resistor will match the properties of the cable. Chris Lee, Ars Technica, 15 Jan. 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dielectric.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


dia- + electric

First Known Use

1837, in the meaning defined above

Time Traveler
The first known use of dielectric was in 1837

Dictionary Entries Near dielectric

Cite this Entry

“Dielectric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dielectric. Accessed 18 Jun. 2024.

Medical Definition


di·​elec·​tric ˌdī-i-ˈlek-trik How to pronounce dielectric (audio)
: a nonconductor of direct electric current
dielectric adjective

More from Merriam-Webster on dielectric

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