- Chemistry. a white, heavy, amorphous, odorless and tasteless, infusible, water-insoluble powder, ZrO2, used chiefly as a pigment for paints, an abrasive, and in the manufacture of refractory crucibles.
Origin of zirconium oxide
First recorded in 1865–70
Also called zir·co·ni·a [zur-koh-nee-uh] /zɜrˈkoʊ ni ə/, zirconium dioxide.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for zirconia
With the heat gun he sheared off their tentacles; he could sell the zirconia in the entities.The Beast of Space
Lime, magnesia, zirconia, and similar oxides were used successfully.Artificial Light
A coating of zirconia or any other oxide, for instance, is far more quickly destroyed.
With a diamond, carborundum or zirconia button the photosphere can be as much as one thousand times the volume of the button.
Zirconia yields with nitrate of cobalt, when ignited, an infusible black mass.
- another name (not in technical usage) for zirconium oxide
- a white amorphous powder that is insoluble in water and highly refractory, used as a pigment for paints, a catalyst, and an abrasive. Formula: ZrO 2Also called: zirconia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012