Main Entry: zir·co·nia

Pronunciation: \ˌzər-ˈkō-nē-ə\

Function: noun

Etymology: New Latin, from International Scientific Vocabulary zircon

Date: 1797

: a white crystalline compound ZrO₂ used especially in refractories, in thermal and electric insulation, in abrasives, and in enamels and glazes —called also zirconium oxide