magnetic field

noun

: the portion of space near a magnetic body or a current-carrying body in which the magnetic forces due to the body or current can be detected

Examples of magnetic field in a Sentence

Recent Examples on the Web

Experts at the time forecast a severe geomagnetic storm, predicting a big disturbance in the Earth’s magnetic field.. —Hanh Truong, Sacramento Bee, 31 May 2024

The flow of plasma within the sun creates the star’s magnetic field. —Will Sullivan, Smithsonian Magazine, 24 May 2024

The auroras occur when the Earth's magnetic field becomes disrupted by intense solar winds traveling at 3 million mph that carry plasma particles that interact with gases – namely oxygen and nitrogen – in the planet's atmosphere. —Stephen J. Beard, USA TODAY, 18 May 2024

So last year the Air Force flew an AI program — loaded onto a laptop that was strapped to the floor of a C-17 military cargo plane — to work on an alternative solution using the Earth’s magnetic fields. —Tara Copp, Fortune, 12 May 2024

Word History

First Known Use

1845, in the meaning defined above

Kids Definition

magnetic field

noun

: the portion of space near a magnetic body or a body carrying an electric current within which magnetic forces due to the body or current can be detected

Medical Definition

magnetic field

noun

: the portion of space near a magnetic body or a current-carrying body in which the magnetic forces due to the body or current can be detected

the magnetic field of the heart