magnetic field


Definition of magnetic field

: 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 The strength of the magnetic field is helping scientists learn how the black hole launches jets of material across the galaxy. Ashley Strickland, CNN, "Ingenuity Mars helicopter to take flight and 5 other top space and science stories this week," 27 Mar. 2021 Specifically, electrons on one sublattice appeared to feel a positive magnetic field while electrons on the other sublattice felt a negative one. Charlie Wood, Quanta Magazine, "A New Twist Reveals Superconductivity’s Secrets," 16 Mar. 2021 While astronauts have stayed on the International Space Station for a year, the ISS sits just within Earth's protective magnetic field. Katie Hunt, CNN, "Radiation on moon's surface measured for the first time, study says," 25 Sep. 2020 Earth's protective magnetic field is weakening in a region across the South Atlantic. Jennifer Leman, Popular Mechanics, "Our Magnetic Field Is Acting Sketchy Again," 1 June 2020 After being ejected from the foil, the fresh flerovium nuclei were separated from beam ions and other debris by a magnetic field that deflects ions according to their mass. Daniel Clery, Science | AAAS, "Hopes evaporate for the superheavy element flerovium having a long life," 12 Feb. 2021 Current from electrodes on the hull interacts with the magnetic field in the open water surrounding it. Abe Dane, Popular Mechanics, "Remembering Jet Ships: The Futuristic 100-Knot Superboat That Never Was," 14 Jan. 2021 The magnetic field can easily destabilize and bring down the rest of the ongoing reaction. Caroline Delbert, Popular Mechanics, "This Fuel Is About to Power the World's Biggest Fusion Reactor," 23 Feb. 2021 Computers register whether their shells are open or closed by detecting changes in the magnetic field. The Economist, "Invaluable bivalves How clams help keep Polish water clean," 23 Jan. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'magnetic field.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of magnetic field

1845, in the meaning defined above

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Time Traveler for magnetic field

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The first known use of magnetic field was in 1845

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Statistics for magnetic field

Last Updated

9 Apr 2021

Cite this Entry

“Magnetic field.” Dictionary, Merriam-Webster, Accessed 18 Apr. 2021.

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More Definitions for magnetic field

magnetic field


Kids Definition of magnetic field

: the portion of space near a magnetic object within which magnetic forces can be detected

magnetic field


Medical Definition of magnetic field

: 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 Encyclopedia article about magnetic field

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