2 definitions found From WordNet (r) 2.0 [wn]: Ptolemaic adjective 1: of or relating to the astronomer Ptolemy 2: of or relating to the geocentric Ptolemaic system; "in the Ptolemaic system of planetary motion the earth is fixed as the center of the universe with the sun and moon and planets revolving around it" From The Collaborative International Dictionary of English v.0.44 [gcide]: Ptolemaic \Ptol'e*ma"ic\, adjective Of or pertaining to Ptolemy, the geographer and astronomer. {Ptolemaic system} (Astron.), the system maintained by Ptolemy, who supposed the earth to be fixed in the center of the universe, with the sun and stars revolving around it. This theory was received for ages, until superseded by the Copernican system.

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