di·​elec·​tric | \ ˌdī-ə-ˈlek-trik How to pronounce dielectric (audio) \

Definition of dielectric

: a nonconductor of direct electric current

Other Words from dielectric

dielectric adjective

Examples of dielectric in a Sentence

Recent Examples on the Web 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 example sentences are selected automatically from various online news sources to reflect current usage of the word 'dielectric.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of dielectric

1837, in the meaning defined above

History and Etymology for dielectric

dia- + electric

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Time Traveler for dielectric

Time Traveler

The first known use of dielectric was in 1837

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Dictionary Entries Near dielectric



dielectric absorption

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Statistics for dielectric

Cite this Entry

“Dielectric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dielectric. Accessed 20 Jan. 2022.

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More Definitions for dielectric


di·​elec·​tric | \ ˌdī-i-ˈlek-trik How to pronounce dielectric (audio) \

Medical Definition of dielectric

: a nonconductor of direct electric current

Other Words from dielectric

dielectric adjective

More from Merriam-Webster on dielectric

Britannica.com: Encyclopedia article about dielectric


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