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magnetometer

[mag-ni-tom-i-ter] /ˌmæg nɪˈtɒm ɪ tər/
noun
1.
an instrument for measuring the intensity of a magnetic field, especially the earth's magnetic field.
2.
an instrument for detecting the presence of ferrous or magnetic materials, especially one used to detect concealed weapons at airports.
Origin
1820-1830
1820-30; magneto- + -meter
Related forms
magnetometric
[mag-nee-tuh-me-trik] /mægˌni təˈmɛ trɪk/ (Show IPA),
adjective
magnetometry, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for magnetometer

magnetometer

/ˌmæɡnɪˈtɒmɪtə/
noun
1.
any instrument for measuring the intensity or direction of a magnetic field, esp the earth's field
Derived Forms
magnetometric (ˌmæɡnɪtəʊˈmɛtrɪk) adjective
magnetometry, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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magnetometer in Science
magnetometer
  (māg'nĭ-tŏm'ĭ-tər)   
An instrument for measuring the magnitude and direction of a magnetic field. Magnetometers are often used in archaeological and geological investigations to determine the intensity and direction of the Earth's magnetic field at various times in the past by examining the strength and direction of magnetization of ferromagnetic materials in different geological strata. See also magnetic reversal.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for magnetometer

instrument for measuring the strength and sometimes the direction of magnetic fields, including those on or near the Earth and in space. Magnetometers are also used to calibrate electromagnets and permanent magnets and to determine the magnetization of materials

Learn more about magnetometer with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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