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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
These events interact with the Earth’s magnetic field, often pulling aurora borealis below the Canadian border.
—Ty Roush, Forbes, 1 Nov. 2024
Researchers in the School of Mechanical and Aerospace Engineering (MAE) at Nanyang Technological University, Singapore (NTU Singapore), have built on earlier work to create a grain-sized soft robot that can enter the body and be controlled by magnetic fields to travel to a specific target.
—New Atlas, 25 Oct. 2024
The ‘cyborg experiment’ During the September mission, the Polaris Dawn crew conducted the first commercial spacewalk as well as ventured into the lower band of Earth’s Van Allen radiation belts, which are areas within Earth’s magnetic field where pools of radiation from the sun lie trapped.
—Jackie Wattles, CNN, 25 Oct. 2024
Our planet’s magnetic field shields Earth’s biosphere and atmosphere from barrages of high-energy cosmic rays and dangerous outbursts of solar particles and radiation.
—Saima S. Iqbal, Scientific American, 23 Oct. 2024
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Word History
First Known Use
1845, in the meaning defined above
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 14 Nov. 2024.
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
Nglish: Translation of magnetic field for Spanish Speakers
Britannica.com: Encyclopedia article about magnetic field
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