noun
- A sinus of the meatuses of the nasal cavity (behind the bridge of the nose. ).
- synonyms: ethmoidal sinus, sinus ethmoidales
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). ethmoid sinus. Retrieved September 21, 2026, from http://smartdefine.org/ethmoid_sinus/definitions/1323362 |
| Chicago | WordNet. 2010. "ethmoid sinus" http://smartdefine.org/ethmoid_sinus/definitions/1323362 (accessed September 21, 2026). |
| Harvard | WordNet 2010, ethmoid sinus, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/ethmoid_sinus/definitions/1323362>. |
| MLA | WordNet. "ethmoid sinus" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/ethmoid_sinus/definitions/1323362> |