copernicium

noun

Etymology: From Copernicus + -ium. Named after Polish astronomer Nicolaus Copernicus (1473–1543).

1. 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.”