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magnesium oxide


from The American Heritage® Dictionary of the English Language, 4th Edition

  • 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A white powder (MgO) with a high melting point; it occurs naturally as periclase, an ore of magnesium.

from the GNU version of the Collaborative International Dictionary of English

  • n. Magnesia.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a white solid mineral that occurs naturally as periclase; a source of magnesium


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