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- Of or pertaining to Nicolaus Copernicus (1473-1543), the influential astronomer.
- Of or pertaining to one or more of his theories.
pertaining to Nicolaus Copernicus
pertaining to his theories
Copernican (plural Copernicans)
- A supporter of the theories of Copernicus.
- The epoch in the lunar geologic timescale that occurred between 1.1 billion years ago to the present day.