Definition of Copernican
1 : of or relating to Copernicus or the belief that the earth rotates daily on its axis and the planets revolve in orbits around the sun
2 : of radical or major importance or degree <effected a Copernican revolution in philosophy — Times Literary Supplement>
Copernicanismplay \-kə-ˌni-zəm\ noun
Origin and Etymology of copernican
First Known Use: 1667
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