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Ptolemy

[tol-uh-mee]
noun, plural Ptol·e·mies for 2.
  1. Claudius Ptolemaeus, flourished a.d. 127–151, Hellenistic mathematician, astronomer, and geographer in Alexandria.
  2. any of the kings of the Macedonian dynasty that ruled Egypt 323–30 b.c.
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Ptolemy I

noun
  1. surnamed Soter, 367?–280 b.c., ruler of Egypt 323–285: founder of Macedonian dynasty in Egypt.
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Ptolemy II

noun
  1. surnamed Philadelphus, 309?–247? b.c., king of Egypt 285–247? (son of Ptolemy I).
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ptolemy

Contemporary Examples

Historical Examples

  • I hope to make him a map of England, which is a great country, and was unknown to Ptolemy.

    Albert Durer

    T. Sturge Moore

  • Perhaps Ptolemy had not thought of this, or perhaps he may have seen arguments against it.

  • Unfortunately, we know very little as to the personal history of Ptolemy.

  • The name, Ptolemy, appears to have been a common one in Egypt in those days.

  • Ptolemy had supposed that all the stars were attached to the surface of a sphere.


British Dictionary definitions for ptolemy

Ptolemy

noun
  1. Latin name Claudius Ptolemaeus. 2nd century ad, Greek astronomer, mathematician, and geographer. His Geography was the standard geographical textbook until the discoveries of the 15th century. His system of astronomy (see Ptolemaic system), as expounded in the Almagest, remained undisputed until the Copernican system was evolved
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Ptolemy I

noun
  1. called Ptolemy Soter. ?367–283 bc, king of Egypt (323–285 bc), a general of Alexander the Great, who obtained Egypt on Alexander's death and founded the Ptolemaic dynasty: his capital Alexandria became the centre of Greek culture
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Ptolemy II

noun
  1. called Philadelphus. 309–246 bc, the son of Ptolemy I; king of Egypt (285–246). Under his rule the power, prosperity, and culture of Egypt was at its height
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ptolemy

Ptolemy

ancient masc. proper name, from Greek Ptolemaios, literally "warlike," from ptolemos, collateral form of polemos "war." Cf. Ptolemaic.

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Online Etymology Dictionary, © 2010 Douglas Harper

ptolemy in Science

Ptolemy

[tŏlə-mē]
See Note at Copernicus.
  1. 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.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ptolemy in Culture

Ptolemy

[(tol-uh-mee)]

An ancient Greek astronomer, living in Egypt (see also Egypt), who proposed a way of calculating the movements of the planets on the assumption that they, along with the sun and the stars, were embedded in clear spheres that revolved around the Earth. The system of Ptolemy, called the Ptolemaic universe, prevailed in astronomy for nearly fifteen hundred years, until the modern model of the solar system, with the sun at the center and the planets in motion, was developed from the ideas of Copernicus.

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Ptolemy

[(tol-uh-mee)]

An ancient Greek astronomer, living in Egypt (see also Egypt), who proposed a way of calculating the movements of the planets on the assumption that they, along with the sun and the stars, revolved around the Earth. (See Ptolemaic universe.)

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.