Open English Wordnet
Nouns
(n)Ptolemy, Claudius PtolemaeusAlexandrian astronomer (of the 2nd century) who proposed a geocentric system of astronomy that was undisputed until the late Renaissance
(n)Ptolemy, Ptolemaic dynastyan ancient dynasty of Macedonian kings who ruled Egypt from 323 BC to 30 BC; founded by Ptolemy I and ended with Cleopatra