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

A periodic current thus flowed in one direction relatively to the coil in one half-turn from a position perpendicular to the magnetic meridian, and in the opposite direction in the next half-turn.

From Project Gutenberg

The first symptom of an aurora borealis is commonly a low arch of pale, greenish-yellow light, placed at right angles to the magnetic meridian.

From Project Gutenberg

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 Project Gutenberg

Neither dazed nor dazzled, his brain had swung true to the magnetic meridian of his faith.

From Project Gutenberg

A bent wire, carrying a small magnetic needle, is balanced on the steel point, so that the magnet, with the fine wire, arranges itself horizontally in the direction of the magnetic meridian.

From Project Gutenberg