demagnetize

verb

de·​mag·​ne·​tize (ˌ)dē-ˈmag-nə-ˌtīz How to pronounce demagnetize (audio)
demagnetized; demagnetizing; demagnetizes

transitive verb

: to deprive of magnetic properties
demagnetizer noun

Examples of demagnetize 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.
Meanwhile, magnetic media pucker and demagnetize. Wyatt Williams, Harpers Magazine, 26 May 2026 For dysprosium and terbium, the heavy rare earths that prevent magnets from demagnetizing inside electric motors and missile guidance fins, the numbers are worse: producers outside China are projected to meet less than 20% of global demand for those two elements by 2035. Nick Lichtenberg, Fortune, 26 May 2026 It was then safely demagnetized, proving the reliability of the new approach. Sujita Sinha, Interesting Engineering, 29 Sep. 2025 The magnetic strip on their room key stops working after their cellphone gets too close and demagnetizes it. Ron Hurtibise, Sun Sentinel, 14 May 2025 But there were complications such as the fact that these laser pulses heated the material, which tended to demagnetize it. IEEE Spectrum, 5 Feb. 2025 But what triggered the reduction that demagnetized the magnetite in the first place? Elizabeth Rayne, Ars Technica, 19 May 2024

Word History

First Known Use

1839, in the meaning defined above

Time Traveler
The first known use of demagnetize was in 1839

Browse Nearby Words

Cite this Entry

“Demagnetize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/demagnetize. Accessed 4 Jun. 2026.

Kids Definition

demagnetize

verb
de·​mag·​ne·​tize (ˈ)dē-ˈmag-nə-ˌtīz How to pronounce demagnetize (audio)
: to cause to lose magnetic properties
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