co·per·nic·i·um
| \ ˌkō-pər-ˈni-sē-əm
\
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Definition of copernicium
: a short-lived artificially produced radioactive element that has 112 protons — see Chemical Elements Table
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“Copernicium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/copernicium. Accessed 3 Jul. 2022.
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Time Traveler for copernicium
The first known use of copernicium was in 2009
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