atomic number 40
English Thesaurus
1. 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)
| hypernym | : | metal, metallic element, |
| definition | : | any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. (noun.substance) |
| substance meronym | : | baddeleyite, |
| definition | : | a mineral consisting of zirconium oxide (noun.substance) |
| substance meronym | : | zircon, zirconium silicate, |
| definition | : | 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) |
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