- a line on the earth's surface, passing in the direction of the horizontal component of the earth's magnetic field.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for magnetic meridian
A line in extension of the sighting line a'-b' will be the magnetic-meridian.Manual of Military Training
James A. Moss
- a continuous imaginary line around the surface of the earth passing through both magnetic poles
- 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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