noun
- An epicycloid in which the rolling circle equals the fixed circle. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). cardioid. Retrieved September 20, 2026, from http://smartdefine.org/cardioid/definitions/1244882 |
| Chicago | WordNet. 2010. "cardioid" http://smartdefine.org/cardioid/definitions/1244882 (accessed September 20, 2026). |
| Harvard | WordNet 2010, cardioid, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/cardioid/definitions/1244882>. |
| MLA | WordNet. "cardioid" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/cardioid/definitions/1244882> |