agonic line

noun

Definition of agonic line

: an imaginary line on the earth's surface connecting the north and south magnetic poles and passing through those points where there is no magnetic declination and where a freely suspended magnetic needle indicates true north — compare aclinic line, isogonic line

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First Known Use of agonic line

1846, in the meaning defined above

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The first known use of agonic line was in 1846

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Dictionary Entries Near agonic line

agonic

agonic line

Agonidae

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Cite this Entry

“Agonic line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/agonic%20line. Accessed 20 Sep. 2021.

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