1. A synthetic chemical element with atomic number 112, created by nuclear fusion and named after astronomer Nicolaus Copernicus.
Usage: chemistry; symbol: Cn; highly unstable with extremely short half-life

Examples

• Copernicium was first synthesized in 1996 by German scientists.
• The element copernicium is named in honor of Nicolaus Copernicus.
• Copernicium has an atomic number of 112.
• Scientists study copernicium to understand superheavy elements.
• The symbol for copernicium on the periodic table is Cn.