magnetic moment
noun
: a vector quantity that is a measure of the torque exerted on a magnetic system (such as a bar magnet or dipole) when placed in a magnetic field and that for a magnet is the product of the distance between its poles and the strength of either pole
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Combine that with new predictions by the related Muon g-2 Theory Initiative using a new means of calculating the muon's magnetic moment, and the discrepancy between theoretical prediction and experiment narrows even further.
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ArsTechnica, 30 June 2025
The interaction creates a wobble in the magnetic moments of electrons within the second layer.
—IEEE Spectrum, 5 Jan. 2019
In order to store information, spintronic devices need materials that have a permanent magnetization, or magnetic moment.
—Pedram Khalili, IEEE Spectrum, 26 June 2015
Its value is determined mostly by the magnetic moment of the bare electron field; the largest changes arise from the electromagnetic field, and they can be calculated with astonishing precision.
—Luke Caldwell, Scientific American, 1 Feb. 2024
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ArsTechnica, 30 June 2025
The interaction creates a wobble in the magnetic moments of electrons within the second layer.
—IEEE Spectrum, 5 Jan. 2019
In order to store information, spintronic devices need materials that have a permanent magnetization, or magnetic moment.
—Pedram Khalili, IEEE Spectrum, 26 June 2015
Its value is determined mostly by the magnetic moment of the bare electron field; the largest changes arise from the electromagnetic field, and they can be calculated with astonishing precision.
—Luke Caldwell, Scientific American, 1 Feb. 2024
See All Example Sentences for magnetic moment
Cite this Entry
“Magnetic moment.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnetic%20moment. Accessed 4 Jul. 2025.
Copy CitationMedical Definition
magnetic moment
noun
magnetic mo·ment
-ˈmō-mənt 
: a vector quantity that is a measure of the torque exerted on a magnetic system (as a bar magnet or dipole) when placed in a magnetic field and that for a magnet is the product of the distance between its poles and the strength of either pole
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