magnetic field

noun

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

But add a magnetic field, and that can change: the structure of the states available to electrons takes on a distinct fractal form, called Hofstadter's butterfly. Chris Lee, Ars Technica, "Fractal structure produces fractal electrons with fractal energies," 2 Dec. 2018 Besides ordinary electric and magnetic fields, such materials can also generate disruptions in the quantum fluctuations that are ever-present in space. Frank Wilczek, WSJ, "The Second Quantum Revolution," 18 Oct. 2018 Jia used measurements from Galileo’s magnetometer to seek out small perturbations in the magnetic field during the closest flyby. Ramin Skibba, Scientific American, "Decades-Old Data Unveils Plumes Spewing from Europa," 14 May 2018 Another Uranus anomaly is its abnormally wobbly magnetic field, which opens and closes as the planet rotates every 17 hours. Jill Kiedaisch, Popular Mechanics, "Hubble Observes Ice Giant Vortexes and Polar Storms on Neptune and Uranus," 9 Feb. 2019 The atom trap is a bowl, but the shape of the bowl depends on the internal state of the atom and an applied magnetic field. Chris Lee, Ars Technica, "Single atoms sit still on a hot plate, may yield new quantum tech," 10 Sep. 2018 An earthquake's magnetic field is created by phenomena called the piezo-magnetic effect, or piezomagnetism. David Grossman, Popular Mechanics, "Earth's Magnetic Fields Could Give Lightspeed Warning of Incoming Earthquakes and Tsunamis," 15 Oct. 2018 But unlike neutrinos, cosmic rays have a charge, which means their path can be deflected by magnetic fields. Author: Sarah Kaplan, Anchorage Daily News, "In a cosmic first, scientists detect ‘ghost particles’ from a distant galaxy," 12 July 2018 Neutrinos offer a solution to this problem because these neutral particles are unaffected by magnetic fields. Amina Khan, latimes.com, "After years of searching, scientists finally trace high-energy neutrinos to a distant blazar," 12 July 2018

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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Last Updated

10 Mar 2019

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Time Traveler for magnetic field

The first known use of magnetic field was in 1845

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More Definitions for magnetic field

magnetic field

noun

Kids Definition of magnetic field

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

magnetic field

noun

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

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More from Merriam-Webster on magnetic field

Spanish Central: Translation of magnetic field

Nglish: Translation of magnetic field for Spanish Speakers

Britannica.com: Encyclopedia article about magnetic field

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