Where does this definition of Copernican system come from?
This entry for Copernican system is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is Copernican system a noun, verb, or something else?
In this entry, Copernican system is tagged as 2n..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.