Definition of zirconium in English:


Line breaks: zir|co¦nium
Pronunciation: /zəːˈkəʊnɪəm


[mass noun]
The chemical element of atomic number 40, a hard silver-grey metal of the transition series. (Symbol: Zr)
More example sentences
  • Sodium is also used as a chemical reducing agent in producing titanium, zirconium, niobium, and tantalum from their fused salts.
  • The process is not recommended for weld preparation for stainless steel, titanium, zirconium, and other similar metals without subsequent cleaning.
  • For deoxidation of carbon and low-alloy steels, aluminum, titanium, and zirconium are used.


early 19th century: modern Latin, from zircon.

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