Agonic Line Definition

ā-gŏnĭk, ə-
An imaginary line on the earth's surface connecting points where the magnetic declination is zero.
American Heritage
An imaginary line on the earth's surface along which true north and magnetic north are identical: at any point along this line, the declination of a compass needle equals zero.
Webster's New World
(cartography, navigation) A line on a chart or map joining points of zero magnetic declination.

Other Word Forms of Agonic Line


agonic line
agonic lines

Origin of Agonic Line

  • Greek agōnos having no angle (a- without a–1) (gōniā angle diagonal) –ic

    From American Heritage Dictionary of the English Language, 5th Edition

  • agonic + line

    From Wiktionary

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