magnetic meridian

American  

noun

1. a line on the earth's surface, passing in the direction of the horizontal component of the earth's magnetic field.

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magnetic meridian British  

noun

1. a continuous imaginary line around the surface of the earth passing through both magnetic poles

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magnetic meridian Scientific  

1. An imaginary reference line passing through both geomagnetic poles of the Earth, used in models and maps of the Earth's magnetic field.

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Example Sentences

Thus a magnetic meridian lies between Fort Erie and Nottawassaga.

From Canada and the Canadians Volume I by Bonnycastle, Richard Henry

In science, I would ask, is "diamagnetism" correctly explained by terming it "the property of any substance whereby it turns itself, when freely suspended, at right angles to the magnetic meridian."

From Notes and Queries, Number 70, March 1, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. by Bell, George

Obvious typographical errors have been corrected as follows: Page 127: “in the magnetic meridian, then”—had “meridan.”

From The Earliest Electromagnetic Instruments by Chipman, Robert A.

Now, this is precisely the direction of the deviation of the magnetic meridian, the needle therefore only follows the meridian, or still continues to point to the temporary magnetic pole.

From Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence by Bassnett, Thomas

“When the plate was in the magnetic meridian, or in any other plane coinciding with the magnetic dip, then its rotation produced no effect upon the galvanometer.”

From Little Masterpieces of Science: Invention and Discovery by Iles, George