Definition of copernicium in English:

copernicium

Syllabification: copernicium
Pronunciation: /kōpərˈnisēəm
 
/

noun

The chemical element of atomic number 112, a highly unstable substance that is produced artificially. (Symbol: Cn)
More example sentences
  • The half-life of the new element Copernicium is not yet clear.
  • Copernicium, discovered 13 years ago and previously known as element 112, was officially added to the table only a few weeks ago.
  • Element 112 was first observed in 1996 but was given its new name copernicium only this past February.

Origin

early 21st century: from the name of Nicolaus Copernicus + -ium.

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