Meaning of Ptolemaic system

Ptol'ema'ic sys'tem

Pronunciation: [key]
— Astron. Astron.
  1. a system elaborated by Ptolemy and subsequently modified by others, according to which the earth was the fixed center of the universe, with the heavenly bodies moving about it.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.