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magnesium

Pronunciation: /magˈniːzɪəm/
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Definition of magnesium

noun

[mass noun]
  • the chemical element of atomic number 12, a silver-white metal of the alkaline earth series. It is used to make strong lightweight alloys, and is also used in flash bulbs and pyrotechnics, as it burns with a brilliant white flame. (Symbol: Mg)

magnesium in other Oxford dictionaries

Definition of magnesium in the US English dictionary
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