noun
- The large opening at the base of the cranium through which the spinal cord passes. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). foramen magnum. Retrieved October 1, 2026, from http://smartdefine.org/foramen_magnum/definitions/1213418 |
| Chicago | WordNet. 2010. "foramen magnum" http://smartdefine.org/foramen_magnum/definitions/1213418 (accessed October 1, 2026). |
| Harvard | WordNet 2010, foramen magnum, Smart Define, viewed 1 October, 2026, <http://smartdefine.org/foramen_magnum/definitions/1213418>. |
| MLA | WordNet. "foramen magnum" 23 October 2010. Web. 1 October 2026. <http://smartdefine.org/foramen_magnum/definitions/1213418> |