Ptolemy

Ptol·e·my ¹  (tl-m)

An Egyptian dynasty of Macedonian kings (323-30 b.c.). The Ptolemies included Ptolemy I (367?-283?), a general in Alexander the Great's army who succeeded him as ruler of Egypt (323-285), and Ptolemy XV (47-30), who ruled as coregent (44-30) with his mother, Cleopatra.

---

Ptolemy  (tl-m) 90?-168 ce.

Greek astronomer and mathematician who based his astronomy on the belief that all heavenly bodies revolved around Earth. Ptolemy's model of the solar system endured until the 16th century when Nicolaus Copernicus proposed that the heavenly bodies in the solar system orbited the Sun.

See Note at Copernicus Nicolaus.

Thesaurus

Noun	1.	Ptolemy - Alexandrian astronomer (of the 2nd century) who proposed a geocentric system of astronomy that was undisputed until the late Renaissance Claudius Ptolemaeus
	2.	Ptolemy - an ancient dynasty of Macedonian kings who ruled Egypt from 323 BC to 30 BC; founded by Ptolemy I and ended with Cleopatra Ptolemaic dynasty dynasty - a sequence of powerful leaders in the same family Ptolemy I - the king of Egypt who founded the Macedonian dynasty in Egypt; a close friend and general of Alexander the Great who took charge of Egypt after Alexander died (circa 367-285 BC) Ptolemy II - son of Ptolemy I and king of Egypt who was said to be responsible for the Septuagint (circa 309-247 BC)