(also Ptolemaic theory )
■ noun Astronomy, historical the theory that the earth is the stationary centre of the universe, with the planets moving in epicyclic orbits within surrounding concentric spheres. Compare with Copernican system .
(also Ptolemaic theory )
■ noun Astronomy, historical the theory that the earth is the stationary centre of the universe, with the planets moving in epicyclic orbits within surrounding concentric spheres. Compare with Copernican system .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004