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.
The tests will assess whether the magnet can withstand the intense magnetic fields and mechanical forces expected during power-plant operation. — Neetika Walter, Interesting Engineering, 5 Nov. 2026 The pink shapes are solar prominences, which are jets of plasma extending out into space and held in place by the sun’s intense magnetic field. — IEEE Spectrum, 5 Nov. 2026 These changes in the magnetic field can drive electric currents in the ground and power lines. — Mark Moldwin, The Conversation, 4 Nov. 2026 If there is a starquake, a sudden shift in the neutron star crust, the magnetic field gets shaken violently. — Phil Plait, Scientific American, 30 Oct. 2026 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 7 Nov. 2026.

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

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