magnetic variation

noun Navigation.
variation ( def 8 ). Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To magnetic variation
Example sentences
Magnetic declination, sometimes called magnetic variation, is the angle between magnetic north and true north.
Is the office of primary responsibility for establishing policy for worldwide application of magnetic variation values.
Lines drawn across aeronautical charts to connect points having the same magnetic variation.
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