Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun atomic_number_40

1 sense of atomic number 40

Sense 1
zirconium, Zr, atomic number 40 -- (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)
       => metallic element, metal -- (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)