magnesium oxide


nounChemistry.

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Origin of magnesium oxide

1
First recorded in 1905–10

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British Dictionary definitions for magnesium oxide

magnesium oxide

noun
  1. a white tasteless substance occurring naturally as periclase: used as an antacid and laxative and in refractory materials, such as crucibles and fire bricks. Formula: MgO: Also called: magnesia

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