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[2x]
: MÜ Mä Mæ Mé Mê Mö Mœ M- M. M1 M2 M3 M< Ma Mb Mc Md Me Mf Mg Mh Mi Mk Ml Mm Mn Mo Mp Mr Ms Mt Mu Mv Mw Mx My
magnetic declination
CIDE DICTIONARY
magnetic declination, n.
The angle (at a particular location) between magnetic north and true north; called also magnetic variation . [WordNet 1.5]
For further exploring for "magnetic declination" in Webster Dictionary Online