n.
Pronunciation: ˌ z ə r- ' k ō -n ē - ə
Function: noun
Etymology: New Latin, from International Scientific Vocabulary zircon
Date: 1797
: a white crystalline compound ZrO 2 used especially in refractories, in thermal and electric insulation, in abrasives, and in enamels and glazes ― called also zirconium oxide