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

See Examples For:

magnetic meridian

It is towards the magnetic meridian of the place that the sky, at first pure, begins to get brownish.

From The Atlantic Monthly, Volume 04, No. 26, December, 1859 by Various

Another class originate at the N. W., and extend gradually south easterly on the magnetic meridian.

From The Philosophy of the Weather And a Guide to Its Changes by Butler, Thomas Belden

Thus a magnetic meridian lies between Fort Erie and Nottawassaga.

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

An arc of the horizon intercepted between the azimuth circle of a celestial object and the magnetic meridian.

From The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Belcher, Edward, Sir

This day we completed the erection of the observatory, and adjusted an instrument to the magnetic meridian, for the purpose of observing the variations of the needle.

From Narrative of a Second Expedition to the Shores of the Polar Sea by Franklin, John