- (n.) The act of retrograding or moving backward.
- (n.) The state of being retrograde; decline.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). retrogradation. Retrieved September 20, 2026, from http://smartdefine.org/retrogradation/definitions/2055410 |
| Chicago | Webster's. 2011. "retrogradation" http://smartdefine.org/retrogradation/definitions/2055410 (accessed September 20, 2026). |
| Harvard | Webster's 2011, retrogradation, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/retrogradation/definitions/2055410>. |
| MLA | Webster's. "retrogradation" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/retrogradation/definitions/2055410> |