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a·gon·ic line(ā-gŏn′ĭk, ə-)
An imaginary line on the earth's surface connecting points where the magnetic declination is zero.
[Greek agōnos, having no angle (a-, without; see a-1 + gōniā, angle; see diagonal) + -ic.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(General Physics) an imaginary line on the surface of the earth connecting points of zero magnetic declination
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
A line drawn on a map or chart joining points of zero magnetic declination for a specified year date. See also magnetic declination.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
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|Noun||1.||agonic line - an imaginary line connecting points on the Earth's surface where the magnetic declination is zero|
line - a spatial location defined by a real or imaginary unidimensional extent
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