noun
- Common Old World swan noted for its whooping call.
- synonyms: whooper, whooper swan
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). cygnus cygnus. Retrieved September 21, 2026, from http://smartdefine.org/cygnus_cygnus/definitions/1268736 |
| Chicago | WordNet. 2010. "cygnus cygnus" http://smartdefine.org/cygnus_cygnus/definitions/1268736 (accessed September 21, 2026). |
| Harvard | WordNet 2010, cygnus cygnus, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/cygnus_cygnus/definitions/1268736>. |
| MLA | WordNet. "cygnus cygnus" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/cygnus_cygnus/definitions/1268736> |