magnetic moment

noun

Definition of magnetic moment

: 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

Examples of magnetic moment in a Sentence

Recent Examples on the Web In 2017, after more than a decade of work, Laporta published his magnum opus — the electron’s magnetic moment to 1,100 digits of precision. Quanta Magazine, 22 Nov. 2021 Fermilab’s new high-precision measurement of the magnetic moment is a remarkable experimental achievement. Sabine Hossenfelder, Scientific American, 7 Apr. 2021 Both measurements of the muon’s wobbliness, or magnetic moment, significantly overshoot the theoretical prediction, as calculated last year by an international consortium of 132 theoretical physicists. Quanta Magazine, 7 Apr. 2021 Years ago, physicists attempted to measure the magnetic moment of the muon to incredible precision, and got a value. Ethan Siegel, Forbes, 27 Apr. 2021 But another group — which calculated what’s known to be the dominant strong-force contribution to the muon’s magnetic moment — found a significant discrepancy. Ethan Siegel, Forbes, 8 Apr. 2021 The muon’s magnetic moment determines how fast the particle’s spin axis orbits around magnetic field lines. Sabine Hossenfelder, Scientific American, 7 Apr. 2021 The neutrino could have a magnetic moment, explaining these events. Ethan Siegel, Forbes, 27 Apr. 2021 On April 7, the physics world was startled into glorious confusion by two announcements of a new measurement and a new calculation of the magnetic moment of the muon, published in the journals Physical Review Letters and Nature. Frank Wilczek, WSJ, 13 Apr. 2021

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

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First Known Use of magnetic moment

1865, in the meaning defined above

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Time Traveler for magnetic moment

Time Traveler

The first known use of magnetic moment was in 1865

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Dictionary Entries Near magnetic moment

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Last Updated

27 Nov 2021

Cite this Entry

“Magnetic moment.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnetic%20moment. Accessed 2 Dec. 2021.

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More Definitions for magnetic moment

magnetic moment

noun
magnetic mo·​ment | \ -ˈmō-mənt How to pronounce magnetic moment (audio) \

Medical Definition of magnetic moment

: 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

More from Merriam-Webster on magnetic moment

Britannica.com: Encyclopedia article about magnetic moment

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