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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

adj. - Of or relating to a famous astronomer adj. - Of or relating to the geocentric system designed by a famous astronomer.

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Usage examples (37)
  • 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
  • This system became known as the Ptolemaic system and predicted the positions of the planets accurately enough for naked-eye observations.
  • This so-called Ptolemaic system of astronomy fitted in very nicely with the language of the
  • Hephaestio of Thebes (ca. 415), and the Ptolemaic, which is followed by Porphyrius (ca. 250), Paul of
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