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Platonic year

noun

, Astronomy.
  1. a period of about 26,000 years, equal to the time required for a complete revolution of the equinoxes.


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Word History and Origins

Origin of Platonic year1

First recorded in 1630–40

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Example Sentences

Oh for the revolution of the great Platonic year, that those times might come over again!

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Platonic solidPlatonism