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/koʊpəɹˈnɪsi.əm/ · noun
The transuranic chemical element (symbol Cn) with atomic number 112..
Copernicium is one of a group of superheavy elements made artificially in a particle accelerator by colliding ions into a heavymetal target; and, like the other superheavy elements, it is radioactive and decays very quickly.
Use copernicium when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Copernicium means The transuranic chemical element (symbol Cn) with atomic number 112..
Common synonyms include eka-mercury, ununbium.
The opposite depends on the specific sense.
Copernicium is one of a group of superheavy elements made artificially in a particle accelerator by colliding ions into a heavymetal target; and, like the other superheavy elements, it is radioactive and decays very quickly.
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