noun
- The name of the day that is added during a leap year.
- synonyms: leap day, February 29
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). bissextile day. Retrieved September 22, 2026, from http://smartdefine.org/bissextile_day/definitions/1260512 |
| Chicago | WordNet. 2010. "bissextile day" http://smartdefine.org/bissextile_day/definitions/1260512 (accessed September 22, 2026). |
| Harvard | WordNet 2010, bissextile day, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/bissextile_day/definitions/1260512>. |
| MLA | WordNet. "bissextile day" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/bissextile_day/definitions/1260512> |