noun
- Ill-smelling European herb with rugose leaves and whorls of dark purple flowers.
- synonyms: black horehound, black archangel, fetid horehound, stinking horehound
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). ballota nigra. Retrieved September 24, 2026, from http://smartdefine.org/ballota_nigra/definitions/1259065 |
| Chicago | WordNet. 2010. "ballota nigra" http://smartdefine.org/ballota_nigra/definitions/1259065 (accessed September 24, 2026). |
| Harvard | WordNet 2010, ballota nigra, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/ballota_nigra/definitions/1259065>. |
| MLA | WordNet. "ballota nigra" 23 October 2010. Web. 24 September 2026. <http://smartdefine.org/ballota_nigra/definitions/1259065> |