(n.) A small, dry, indehiscent fruit, containing a single seed, as in the buttercup; -- called a naked seed by the earlier botanists.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Achenium. Retrieved September 23, 2026, from http://smartdefine.org/achenium/definitions/1970411 |
| Chicago | Webster's. 2011. "Achenium" http://smartdefine.org/achenium/definitions/1970411 (accessed September 23, 2026). |
| Harvard | Webster's 2011, Achenium, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/achenium/definitions/1970411>. |
| MLA | Webster's. "Achenium" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/achenium/definitions/1970411> |