Definition for ZIR-CO'NI-A

ZIR-CO'NI-A, n.

An oxyd of the metal zirconium, discovered by Klaproth, in the year 1789, in the zircon of Ceylon, and subsequently in the hyacinth of Expaily in France. It resembles alumine in appearance. It is so hard as to scratch glass. When pure it is a white powder.

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