zirconia vs oxide

zirconia and oxide both are nouns.

Word	Noun	Adjective	Verb	Adverb
zirconia	Yes	No	No	No
oxide	Yes	No	No	No

As nouns, oxide is a hypernym of zirconia; that is, oxide is a word with a broader meaning than zirconia:

zirconia: a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes
oxide: any compound of oxygen with another element or a radical

zirconia (noun)	oxide (noun)
a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes	any compound of oxygen with another element or a radical