noun
- The nose and throat and trachea. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). upper respiratory tract. Retrieved September 26, 2026, from http://smartdefine.org/upper_respiratory_tract/definitions/1323426 |
| Chicago | WordNet. 2010. "upper respiratory tract" http://smartdefine.org/upper_respiratory_tract/definitions/1323426 (accessed September 26, 2026). |
| Harvard | WordNet 2010, upper respiratory tract, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/upper_respiratory_tract/definitions/1323426>. |
| MLA | WordNet. "upper respiratory tract" 23 October 2010. Web. 26 September 2026. <http://smartdefine.org/upper_respiratory_tract/definitions/1323426> |