(n.) The period of a synodic revolution of the moon or the time from one new moon to the next; varying in length, at different times, from about 29/ to 29/ days, the average length being 29 d., 12h., 44m., 2.9s.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). lunation. Retrieved September 24, 2026, from http://smartdefine.org/lunation/definitions/2029214 |
| Chicago | Webster's. 2011. "lunation" http://smartdefine.org/lunation/definitions/2029214 (accessed September 24, 2026). |
| Harvard | Webster's 2011, lunation, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/lunation/definitions/2029214>. |
| MLA | Webster's. "lunation" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/lunation/definitions/2029214> |