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Copernican system

noun

🔊/kəˈpɜːnɪkən sɪstəm/

🔊/kəˈpɜːrnɪkən sɪstəm/

[singular]

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the theory that the sun is the centre of the solar system, with the earth and other planets moving around it 哥白尼体系（即日心说）compare Ptolemaic system
Word Originmid 17th cent.: named after Copernicus (1473-1543), the Polish astronomer.