American English

Definition of the Ptolemaic system noun from the Oxford Advanced American Dictionary

 

the Ptolemaic system

 noun
noun
NAmE//ˌtɑləˈmeɪɪk ˌsɪstəm//
 
[singular]
 
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the theory in the past that the earth was the center of the universe, with other planets and stars moving around it compare Copernican system
See the Oxford Advanced Learner's Dictionary entry: the Ptolemaic system