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

The repeater seems to be in an environment with strong magnetic fields. John Timmer, Ars Technica, "We’ve seen more fast radio bursts, but we still don’t know what they are," 11 Oct. 2018 During its career, the spacecraft was the first to map the entire magnetosphere, which is the area influenced by Earth's magnetic field. Meghan Bartels, Space.com, "Long-Lost Spacecraft That NASA Rediscovered This Year Is Incommunicado," 30 Aug. 2018 The tags were fitted with several instruments: pressure sensors to measure depth; magnetometers to record orientation with respect to Earth’s magnetic field; accelerometers to measure movement; and microphones to record chatter. The Economist, "When faced with a killer whale should you fight or flee?," 14 June 2018 Or hypothesized particles called axions that interact with magnetic fields might be detected in laboratories or in space. Lisa Randall, Scientific American, "What Is Dark Matter?," 8 May 2018 The density of the solar wind quadrupled and cracked open Earth’s magnetic field. Angela Fritz, Washington Post, "A solar shock wave cracked Earth’s magnetic field last night, but everything is fine," 20 Apr. 2018 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

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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Statistics for magnetic field

Last Updated

7 Apr 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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