noun
- Any of various South American hummingbirds with a sharp pointed bill. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). thornbill. Retrieved September 23, 2026, from http://smartdefine.org/thornbill/definitions/1196707 |
| Chicago | WordNet. 2010. "thornbill" http://smartdefine.org/thornbill/definitions/1196707 (accessed September 23, 2026). |
| Harvard | WordNet 2010, thornbill, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/thornbill/definitions/1196707>. |
| MLA | WordNet. "thornbill" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/thornbill/definitions/1196707> |