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maglev
magma
magma chamber
Magna Carta
magna cum laude
Magna Graecia
magnanimity
magnanimous
magnate
magnesia
magnesite
magnesium
magnesium carbonate
magnesium chloride
magnesium hydroxide
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magnetic declination
mag·net·ic dec·li·na·tion


noun 
Definition:
 
difference between magnetic and true north: the angle between magnetic north and true north at a particular point on the Earth's surface
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