[Co.per.ni.can] adj [Nicolaus Copernicus] (1667) 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 ~ revolution in philosophy --Times Lit. Supp." -- Copernican n -- Co.per.ni.can.ism n