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magnetic meridian

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noun
a line on the earth's surface, passing in the direction of the horizontal component of the earth's magnetic field.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for magnetic meridian

magnetic meridian

noun
a continuous imaginary line around the surface of the earth passing through both magnetic poles
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

Scientific definitions for magnetic meridian

magnetic meridian

An imaginary reference line passing through both geomagnetic poles of the Earth, used in models and maps of the Earth's magnetic field.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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