| 释义 | co·per·ni·can I. \kōˈpərnə̇kən, kəˈ-, -pə̄n-\ adjective
 Usage: usually capitalized
 Etymology: Nicolaus Copernicus (Kopernik) died 1543 Pol. astronomer + English -an
 1.  : of, relating to, or being the astronomic system of Copernicus in which the sun is taken as the center of the planets
 2.  : of radical or major importance or degree
 < a copernican revolution in psychologic theory >
 • co·per·ni·can·ism \-kəˌnizəm\ noun -s usually capitalized
 II. noun
 (-s)
 Usage: usually capitalized
 : a believer in the Copernican system of astronomy usually as opposed to the Ptolemaic
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