zircon
English Thesaurus
1. a common mineral occurring in small crystals; chief source of zirconium; used as a refractory when opaque and as a gem when transparent (noun.substance)
| hypernym | : | mineral, |
| definition | : | solid homogeneous inorganic substances occurring in nature having a definite chemical composition (noun.substance) |
| substance holonym | : | atomic number 40, zirconium, zr, |
| definition | : | a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon (noun.substance) |
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