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Definition of Agonic line
1. Noun. An imaginary line connecting points on the Earth's surface where the magnetic declination is zero.
Definition of Agonic line
1. Noun. (cartography navigation) A line on a chart or map joining points of zero magnetic declination. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Agonic Line
Literary usage of Agonic line
Below you will find example usage of this term as found in modern and/or classical literature:
1. Physiography by Rollin D. Salisbury (1919)
"A line connecting places of no declination is an agonic line. Fig. 447 shows an
agonic line in the United States passing from Lake Superior to South ..."
2. Military Sketching and Map Reading by Loren Chester Grieves (1917)
"This line is called the "agonic" line. In the United States it passes in a ...
The agonic line is not permanent, but is slowly moving westward. ..."
3. Physiography, for High Schools by Rollin D. Salisbury (1908)
"A line connecting places of no declination is an agonic line, and lines ...
343 shows an agonic line in the United States running from Lake Superior to ..."
4. Magnetism and Electricity by Frederick Guthrie (1876)
"The line joining all such needles is called the agonic line. ... Besides this
chief agonic line there is a remarkable closed line forming an ellipsoid ..."
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