(n.) A preparation from the seeds of Paullinia sorbilis, a woody climber of Brazil, used in making an astringent drink, and also in the cure of headache.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). guarana. Retrieved September 22, 2026, from http://smartdefine.org/guarana/definitions/2014006 |
| Chicago | Webster's. 2011. "guarana" http://smartdefine.org/guarana/definitions/2014006 (accessed September 22, 2026). |
| Harvard | Webster's 2011, guarana, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/guarana/definitions/2014006>. |
| MLA | Webster's. "guarana" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/guarana/definitions/2014006> |