noun
- Italian pope from 1878 to 1903 who was interested in the advancement of learning and who opened the Vatican secret archives to all scholars.
- synonyms: Gioacchino Pecci, Giovanni Vincenzo Pecci
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). leo xiii. Retrieved September 23, 2026, from http://smartdefine.org/leo_xiii/definitions/1234216 |
| Chicago | WordNet. 2010. "leo xiii" http://smartdefine.org/leo_xiii/definitions/1234216 (accessed September 23, 2026). |
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| MLA | WordNet. "leo xiii" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/leo_xiii/definitions/1234216> |