magnesium oxide

magnesium oxide   n.  A white powdery compound, MgO, having a high melting point (2,800°C), used in high-temperature refractories, electrical insulation, food packaging, cosmetics, and pharmaceuticals.

Main Entry: magnesium oxide
Function: noun
: a white highly infusible compound MgO used especially in refractories, cements, insulation, and fertilizers, in rubbermanufacture, and in medicine as an antacid and mild laxative

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