agonic line

noun

: 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

Word History

First Known Use

1846, in the meaning defined above

Time Traveler
The first known use of agonic line was in 1846

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Dictionary Entries Near agonic line

Cite this Entry

“Agonic line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/agonic%20line. Accessed 27 Nov. 2022.

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