noun
- Primitive fish of the Mississippi valley having a long paddle-shaped snout.
- synonyms: paddlefish, Polyodon spathula
- Small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet; only species in the family Ornithorhynchidae.
adjective
- Having a beak resembling that of a duck.
- usage: "a duck-billed dinosaur"
- synonyms: duck-billed
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). duckbill. Retrieved September 21, 2026, from http://smartdefine.org/duckbill/definitions/1172943 |
| Chicago | WordNet. 2010. "duckbill" http://smartdefine.org/duckbill/definitions/1172943 (accessed September 21, 2026). |
| Harvard | WordNet 2010, duckbill, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/duckbill/definitions/1172943>. |
| MLA | WordNet. "duckbill" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/duckbill/definitions/1172943> |