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

Caused by Earth's magnetic field interacting with the sun's plasma, the aurora borealis is constantly present, but not always visible to our eyes due to factors such as light pollution, the geomagnetic K-index and moon brightness. —Kathleen Wong, USA Today, 26 Sep. 2025

Ferromagnetism — the familiar force in everyday magnets — aligns electrons uniformly, creating a visible magnetic field. —Neetika Walter, Interesting Engineering, 26 Sep. 2025

Nighttime navigation is also aided by stars, the moon and the Earth’s magnetic field, which help birds stay on course over long distances, according to Audubon Magazine. —Brandi D. Addison, Nashville Tennessean, 26 Sep. 2025

The mission's data will also help scientists map the outer boundary of the heliosphere, the vast bubble around our solar system that's dominated by the sun's solar wind and magnetic field. —Mike Wall, Space.com, 24 Sep. 2025

Word History

First Known Use

1845, in the meaning defined above

Rhymes for magnetic field

• afield
• airfield
• annealed
• appealed
• brownfield
• coalfield
• concealed
• congealed
• cornfield
• downfield
• goldfield
• hayfield

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