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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Even more revealing, the simulations showed that the magnetic fields produced in the convective zone actually help keep the tachocline narrow, not just the other way around. Rupendra Brahambhatt, Interesting Engineering, 13 Sep. 2025 This area of open magnetic fields more easily releases charged particles into space. Jamie Carter, Forbes.com, 13 Sep. 2025 An unforeseen contribution from Juno Juno, meanwhile, has been orbiting Jupiter since 2016, collecting information on the giant planet's internal structure, magnetic field, and atmosphere. Stephen Clark, ArsTechnica, 12 Sep. 2025 Auroras occur when solar wind interacts with Earth's magnetic field. Daisy Dobrijevic, Space.com, 12 Sep. 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

Browse Nearby Words

Cite this Entry

“Magnetic field.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnetic%20field. Accessed 16 Sep. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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