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English definition of “magnesium”

magnesium

noun [U]     /mæɡˈniː.zi.əm/ (symbol Mg)
a chemical element that is a silver-white metal . Magnesium burns very brightly and is used in making fireworks .MineralogyChemical elements
(Definition of magnesium noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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