a white amorphous powder that is insoluble in water and highly refractory, used as a pigment for paints, a catalyst, and an abrasive. Formula: ZrO2
Also called: zirconia
zirconium oxide in American English
zirconium dioxide, ZrO2, a white, infusible powder used in making crucibles, furnace linings, pigments, etc. and, because of its luminosity, in incandescent burners