noun
- The Vatican Council in 1869-1870 that proclaimed the infallibility of the pope when speaking ex cathedra.
- synonyms: First Vatican Council
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Vatican I. Retrieved September 28, 2026, from http://smartdefine.org/vatican_i/definitions/1318947 |
| Chicago | WordNet. 2010. "Vatican I" http://smartdefine.org/vatican_i/definitions/1318947 (accessed September 28, 2026). |
| Harvard | WordNet 2010, Vatican I, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/vatican_i/definitions/1318947>. |
| MLA | WordNet. "Vatican I" 23 October 2010. Web. 28 September 2026. <http://smartdefine.org/vatican_i/definitions/1318947> |