- 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
zirconium oxideWordReference Random House Unabridged Dictionary of American English © 2025 zirco′nium ox′ide,
Collins Concise English Dictionary © HarperCollins Publishers:: zirconium oxiden
'zirconium oxide' also found in these entries (note: many are not synonyms or translations): Forum discussions with the word(s) "zirconium oxide" in the title: No titles with the word(s) "zirconium oxide". Look up "zirconium oxide" at Merriam-Webster Look up "zirconium oxide" at dictionary.com
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