magnesia
/mæg'ni:ʃə/
Definition
- Noun:
- A white solid mineral: Magnesia is a naturally occurring white solid mineral, specifically the mineral form of magnesium oxide (MgO), known as periclase. It serves as an important source of magnesium.
Examples of Usage
- Noun:
- The compound contains magnesia, which gives it fire-resistant properties.
- Periclase is the natural mineral form of magnesia.
Advanced Usage
- Technical/Industrial Context: In industrial and chemical contexts, "magnesia" often refers specifically to magnesium oxide used in manufacturing, refractory materials, or medicine.
- The refractory bricks are lined with magnesia to withstand extreme heat.
Variants and Related Words
- Magnesium Oxide (MgO): The chemical compound name for magnesia.
- Periclase: The specific name for the natural mineral form of magnesia.
- Milk of Magnesia: A common medicinal suspension of magnesium hydroxide, used as an antacid and laxative. (Note: This is a compound term where "magnesia" is part of the name).
Synonyms
- Magnesium oxide: The direct chemical synonym.
- Periclase: Specifically refers to the mineral form.
Notes on Different Meanings
- The primary and almost exclusive meaning of "magnesia" in modern English is as a term for magnesium oxide (MgO). Its use in compound terms like "Milk of Magnesia" is a specific pharmaceutical application.
Noun
-
a white solid mineral that occurs naturally as periclase; a source of magnesium
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