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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The science payload to be landed there includes seismometers, a drill to allow emplacement of heat flow and electrical conductivity probes, and instruments to study the magnetic field and surface weathering. Richard Tribou, The Orlando Sentinel, 19 Apr. 2026 These electrons are fired through a device called an undulator, which uses alternating magnetic fields to wiggle them back and forth. Rupendra Brahambhatt, Interesting Engineering, 19 Apr. 2026 One of these experiment models, ABRACADABRA, employs high-sensitivity radio to capture the faint hum of axion’s oscillating magnetic fields thanks to the close cooperation of UC Berkeley and Lawrence Berkeley National Laboratory. Chase Hunter, Mercury News, 19 Apr. 2026 But remember, auroras are never guaranteed and depend on how successfully the solar wind interacts with Earth's magnetic field. Daisy Dobrijevic, Space.com, 17 Apr. 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 23 Apr. 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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