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copernicium

noun

co·​per·​nic·​i·​um ˌkō-pər-ˈni-sē-əm How to pronounce copernicium (audio)
: a short-lived artificially produced radioactive element that has 112 protons see Chemical Elements Table

Word History

Etymology

New Latin, from Copernicus

First Known Use

2009, in the meaning defined above

Time Traveler
The first known use of copernicium was in 2009

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