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
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These HDDs use the company’s Mozaic 3+ heat assisted magnetic recording, HAMR, technology, where lasers are used to reduce the magnetic fields from the write head required to write a high-densities on stable high coercivity magnetic recording media. Thomas Coughlin, Forbes, 21 Jan. 2025 View Comments Earth’s magnetic field has behaved even more dramatically in the past, with the magnetosphere weakening so much that its polarity reversed. Mindy Weisberger, CNN, 21 Jan. 2025 During solar minimum, the sun's magnetic field is close to a dipole, with one north pole and one south pole, similar to Earth's magnetic field. Daisy Dobrijevic, Space.com, 15 Jan. 2025 By catching the X-rays that are created as solar winds smash into the magnetopause, these satellites and other instruments have seen the outlines of the magnetic field. Sam Walters, Discover Magazine, 7 Jan. 2025 See all Example Sentences for magnetic field 

Word History

First Known Use

1845, in the meaning defined above

Time Traveler
The first known use of magnetic field was in 1845

Dictionary Entries Near magnetic field

Cite this Entry

“Magnetic field.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnetic%20field. Accessed 27 Jan. 2025.

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

More from Merriam-Webster on magnetic field

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