Copernican

[koh-pur-ni-kuh n, kuh-] /koʊˈpɜr nɪ kən, kə-/
adjective
1.
of or pertaining to Copernicus or his theories.
2.
important and radically different; thoroughgoing:
a Copernican revolution in modern art.
Origin
1660-70; Copernic(us) + -an
Related forms
post-Copernican, adjective
pre-Copernican, adjective
Word Origin and History for Copernican
adj.

1660s, "pertaining to Copernicus."