Magnetic Variation Definition
noun
Differences in the earth's magnetic field in time and location.
American Heritage
(military, nautical, navigation) In navigation, at a given place and time, the horizontal angle between the true north and magnetic north measured east or west according to whether magnetic north lies east or west of true north.
Wiktionary
Synonyms:
Other Word Forms of Magnetic Variation
Noun
Singular:
magnetic variation
Plural:
magnetic variations
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