Zir·co·ni·a n. Chem. The oxide of zirconium (ZrO2), obtained as a white powder, and possessing both acid and basic properties. On account of its infusibility, and brilliant luminosity when incandescent, it is used as an ingredient of sticks for the Drummomd light.
n : a white crystalline oxide; used in refractories and in
insulation and abrasives and enamels and glazes [syn: zirconium
oxide, zirconium dioxide]