noun
- The great circle on the celestial sphere midway between the celestial poles.
- synonyms: celestial equator, equinoctial circle, equinoctial line
adjective
- Relating to the vicinity of the equator.
- Relating to an equinox (when the lengths of night and day are equal. ).
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). equinoctial. Retrieved September 20, 2026, from http://smartdefine.org/equinoctial/definitions/1173473 |
| Chicago | WordNet. 2010. "equinoctial" http://smartdefine.org/equinoctial/definitions/1173473 (accessed September 20, 2026). |
| Harvard | WordNet 2010, equinoctial, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/equinoctial/definitions/1173473>. |
| MLA | WordNet. "equinoctial" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/equinoctial/definitions/1173473> |