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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 mag·ne·sia /mægˈniʃə, ʒə/
 苦土,氧化鎂

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 mag·ne·sia /mægˈnɪʃə, ˈnɪʒə/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 Mag·ne·si·a n.  Chem. A light earthy white substance, consisting of magnesium oxide (MgO), and obtained by heating magnesium hydrate or carbonate, or by burning magnesium.  It has a slightly alkaline reaction, and is used in medicine as a mild antacid laxative. See Magnesium.
 Magnesia alba  Med. Chem., a bulky white amorphous substance, consisting of a hydrous basic carbonate of magnesium, and used as a mild cathartic.
 

From: WordNet (r) 2.0

 magnesia
      n : a white solid mineral that occurs naturally as periclase; a
          source of magnesium [syn: periclase, magnesium oxide]