Meaning of magnesia in English:


Pronunciation /maɡ?ni?z??/ /maɡ?ni???/ /maɡ?ni???/ /maɡ?ni?s??/

Translate magnesia into Spanish


mass noun
  • 1Chemistry
    Magnesium oxide.

    Chemical formula: MgO

    • ‘But neither of these qualifies: lime is calcium oxide, a compound of calcium and oxygen, and magnesia is magnesium oxide.’
    1. 1.1Hydrated magnesium carbonate used as an antacid and laxative.
      ‘Or sometimes medicine such as milk of magnesia can be mixed with chocolate or strawberry-flavored milk.’
      • ‘Another option to help reduce discomfort and speed healing is dabbing a mixture of equal parts water and hydrogen peroxide directly on the sore, followed by a bit of milk of magnesia.’
      • ‘I had a colonoscopy last fall and the doctor said that I could take milk of magnesia as often as needed.’
      • ‘Some further experimentation, and some work with a pill-pressing machine, provided Astor with two part-filled bottles, one labelled milk of magnesia and the other labelled soluble aspirin.’
      • ‘My doctor suggested I use milk of magnesia to combat constipation.’


Late Middle English (referring to a mineral said to be an ingredient of the philosopher's stone): via medieval Latin from Greek Magnēsia, denoting a mineral from Magnesia in Asia Minor.