Definition of Ptolemaic
1 : of or relating to the second century geographer and astronomer Ptolemy of Alexandria and especially to his belief that the earth is at the center of the universe with the sun, moon, and planets revolving around it <the Ptolemaic system>
2 : of or relating to the Greco-Egyptian Ptolemies ruling Egypt from 323 to 30 b.c.
Origin and Etymology of ptolemaic
Greek Ptolemaikos, from Ptolemaios Ptolemy
First Known Use: 1661
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