magnesium oxide


noun Chemistry.

  1. magnesia.

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: MgOAlso called: magnesia

n.

  1. A white powdery compound having a high melting point (2,800°C), used in food packaging, cosmetics, and pharmaceuticals.

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