|another name for magnesium oxide|
|[C14: via Medieval Latin from Greek Magnēsia, of Magnēs ancient mineral-rich region]|
magnesia mag·ne·sia (māg-nē'zhə, -shə)
|magnesia (māg-nē'zhə) Pronunciation Key
A white powder with a very high melting point. It is used to make heat-resistant materials, electrical insulators, cements, fertilizer, and plastics. It is also used in medicine as an antacid and laxative. Chemical formula: MgO.