(n.) A genus (Rhamnus) of shrubs or trees. The shorter branches of some species terminate in long spines or thorns. See Rhamnus.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). buckthorn. Retrieved September 20, 2026, from http://smartdefine.org/buckthorn/definitions/1982924 |
| Chicago | Webster's. 2011. "buckthorn" http://smartdefine.org/buckthorn/definitions/1982924 (accessed September 20, 2026). |
| Harvard | Webster's 2011, buckthorn, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/buckthorn/definitions/1982924>. |
| MLA | Webster's. "buckthorn" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/buckthorn/definitions/1982924> |