(n.) Any one of several prickly composite plants, especially those of the genera Cnicus, Craduus, and Onopordon. The name is often also applied to other prickly plants.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). thistle. Retrieved September 21, 2026, from http://smartdefine.org/thistle/definitions/2072168 |
| Chicago | Webster's. 2011. "thistle" http://smartdefine.org/thistle/definitions/2072168 (accessed September 21, 2026). |
| Harvard | Webster's 2011, thistle, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/thistle/definitions/2072168>. |
| MLA | Webster's. "thistle" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/thistle/definitions/2072168> |