magnetic moment
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
1865
First Known Use of magnetic moment
1865
Medical Dictionary
Learn More about magnetic moment

Britannica.com: Encyclopedia article about magnetic moment
Seen and Heard
What made you want to look up magnetic moment? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!