antiferromagnetism

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

Word History

Etymology

anti- entry 1 + ferromagnetism

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“Antiferromagnetism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antiferromagnetism. Accessed 22 Dec. 2025.

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