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

After the maximum, say at 4 A. M., the deflection gradually ceases, and the magnetic meridian returns to its mean position at 8 or 9 A. M.

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

Before they were concave to the equator, and now they are convex; the magnetic meridian is therefore deflected the contrary way to what it was in the day time, by the same principle of reaction.

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

Columbus thus determined a place on the Atlantic in which the magnetic meridian coincided with the geographical and in which the needle stood true to the pole.

From The Century of Columbus by Walsh, James J.

Where the horizontal force is the weakest, the middle of the luminous arch deviates the most from the magnetic meridian.

From COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 by Humboldt, Alexander von

When used, the dip needle must be set so that the plane in which the needle swings contains the magnetic meridian, as indicated by the horizontal needle.

From Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications by Hawkins, Nehemiah