Magnesium_oxideWordNet Explorer

a white solid mineral that occurs naturally as periclase; a source of magnesium

solid homogeneous inorganic substances occurring in nature having a definite chemical composition

a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)