noun
- 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. ).
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). hipparchus. Retrieved September 24, 2026, from http://smartdefine.org/hipparchus/definitions/1233938 |
| Chicago | WordNet. 2010. "hipparchus" http://smartdefine.org/hipparchus/definitions/1233938 (accessed September 24, 2026). |
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| MLA | WordNet. "hipparchus" 23 October 2010. Web. 24 September 2026. <http://smartdefine.org/hipparchus/definitions/1233938> |