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n. - Greek astronomer and mathematician who discovered the precession of the equinoxes and made the first known star chart and is said to have invented trigonometry (second century BC).

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Usage examples (34)
  • Of the two methods of expression Hipparchus ultimately preferred the second.
  • Concepts akin to those deployed in Philoponus 'impetus theory appear in earlier writers such as Hipparchus (2nd c.
  • Hippias, and not Hipparchus, as is vulgarly believed.
  • Homer and Attalus mention six; Hipparchus and Aratus seven.
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