antiferromagnetic

1 of 2

adjective

an·​ti·​fer·​ro·​mag·​net·​ic ˌan-tē-ˌfer-ō-mag-ˈne-tik How to pronounce antiferromagnetic (audio) ˌan-tī- How to pronounce antiferromagnetic (audio)
antiferromagnet
ˌan-tē-ˌfer-ō-ˈmag-nət
ˌan-tī- How to pronounce antiferromagnetic (audio)
noun
antiferromagnetically
ˌan-tē-ˌfer-ō-mag-ˈne-ti-k(ə-)lē
ˌan-tī- How to pronounce antiferromagnetic (audio)
adverb
antiferromagnetism
ˌan-tē-ˌfer-ō-ˈmag-nə-ˌti-zəm
ˌan-tī- How to pronounce antiferromagnetic (audio)
noun

antiferromagnetism

2 of 2

noun

an·​ti·​fer·​ro·​mag·​net·​ism ¦an-ˌtī-ˌfer-ō-¦mag-nə-ˌti-zəm How to pronounce antiferromagnetism (audio) ¦an-tē- How to pronounce antiferromagnetism (audio)
: magnetic behavior characteristic of certain feebly magnetic substances (such as manganese monoxide and chromium sesquioxide) thought to have two oppositely directed electron spins not quite neutralizing each other with the result that the magnetic susceptibility at first increases and then decreases as the substance is heated

Examples of antiferromagnetic in a Sentence

Recent Examples on the Web
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Adjective
Fortunately, there are many antiferromagnetic compounds, one or more of which may show the ideal combination of properties for use in an ultrafast, high density, spintronic RAM. IEEE Spectrum, 5 Feb. 2025 Adding electrons to an antiferromagnetic metal isn’t the only way to cook up superconductivity in TMDs. Charlie Wood, WIRED, 12 Jan. 2025 Long-range antiferromagnetic order only sets in at low temperatures, proponents say. Quanta Magazine, 22 Feb. 2016

Word History

Etymology

Noun

anti- entry 1 + ferromagnetism

First Known Use

Adjective

1936, in the meaning defined above

Time Traveler
The first known use of antiferromagnetic was in 1936

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Cite this Entry

“Antiferromagnetic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antiferromagnetic. Accessed 28 Jun. 2026.

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