Here you will find one or more explanations in English for the word Zirconoid.
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Zirconoid
Zirconoid ir"con*oid, n. [Zircon + oid.] (Crystallog.)
A double eight-sided pyramid, a form common with tetragonal
crystals; -- so called because this form often occurs in
crystals of zircon.
Meaning of Zirconoid from wikipedia