'Ptolemy' definitions:
Definition of 'Ptolemy'
(from WordNet)
noun
Alexandrian astronomer (of the 2nd century) who proposed a geocentric system of astronomy that was undisputed until the late Renaissance [syn: Ptolemy, Claudius Ptolemaeus]
noun
An ancient dynasty of Macedonian kings who ruled Egypt from 323 BC to 30 BC; founded by Ptolemy I and ended with Cleopatra [syn: Ptolemy, Ptolemaic dynasty]