'magnesium oxide' definitions:
Definition of 'magnesium oxide'
noun
A white solid mineral that occurs naturally as periclase; a source of magnesium [syn:
periclase,
magnesia, magnesium oxide]
Definition of 'magnesium oxide'
- magnesium oxide \magnesium oxide\ n. (Chem.)
Magnesia.
[WordNet 1.5]