noun
- A tannic acid that is extracted from black catechu as a white crystalline substance. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). catechin. Retrieved September 21, 2026, from http://smartdefine.org/catechin/definitions/1249571 |
| Chicago | WordNet. 2010. "catechin" http://smartdefine.org/catechin/definitions/1249571 (accessed September 21, 2026). |
| Harvard | WordNet 2010, catechin, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/catechin/definitions/1249571>. |
| MLA | WordNet. "catechin" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/catechin/definitions/1249571> |