noun
- Oil from European pennyroyal having an odor like mint; used chiefly in soaps.
- Aromatic oil from American pennyroyal.
- synonyms: hedeoma oil
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). pennyroyal oil. Retrieved September 26, 2026, from http://smartdefine.org/pennyroyal_oil/definitions/1240910 |
| Chicago | WordNet. 2010. "pennyroyal oil" http://smartdefine.org/pennyroyal_oil/definitions/1240910 (accessed September 26, 2026). |
| Harvard | WordNet 2010, pennyroyal oil, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/pennyroyal_oil/definitions/1240910>. |
| MLA | WordNet. "pennyroyal oil" 23 October 2010. Web. 26 September 2026. <http://smartdefine.org/pennyroyal_oil/definitions/1240910> |