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

But on the quantum level, magnetic moments can fluctuate. David Grossman, Popular Mechanics, "Looks Like We Have a New Material State," 5 Sep. 2019 Because of the uneven number of particles in the nucleus, helium three has a strong magnetic moment. The helium is put into a state where all the magnets point in the same direction, creating what is called magnon. Chris Lee, Ars Technica, "Magnetic helium makes superfluid time crystal," 2 June 2018 But, as the rock cools, the magnetic moment from all the iron atoms begin to line up, thanks to the Earth's magnetic field. Chris Lee, Ars Technica, "Plugging in to a volcano: Geothermal power and the science that enables it," 11 Oct. 2017 The magnets misalign, reducing the magnetic moment of the rocks. Chris Lee, Ars Technica, "Plugging in to a volcano: Geothermal power and the science that enables it," 11 Oct. 2017

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.

See More

First Known Use of magnetic moment

1865, in the meaning defined above

Keep scrolling for more

Learn More about magnetic moment

Statistics for magnetic moment

Last Updated

26 Sep 2019

Look-up Popularity

Time Traveler for magnetic moment

The first known use of magnetic moment was in 1865

See more words from the same year

Keep scrolling for more

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

Comments on magnetic moment

What made you want to look up magnetic moment? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

tired or exhausted

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!