noun
- The membrane surrounding the heart. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). pericardial sac. Retrieved September 23, 2026, from http://smartdefine.org/pericardial_sac/definitions/1213613 |
| Chicago | WordNet. 2010. "pericardial sac" http://smartdefine.org/pericardial_sac/definitions/1213613 (accessed September 23, 2026). |
| Harvard | WordNet 2010, pericardial sac, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/pericardial_sac/definitions/1213613>. |
| MLA | WordNet. "pericardial sac" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/pericardial_sac/definitions/1213613> |