- (a.) Like a sieve; cribriform.
- (a.) Pertaining to or in the region of, the ethmoid bone.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Ethmoidal. Retrieved September 21, 2026, from http://smartdefine.org/ethmoidal/definitions/2005005 |
| Chicago | Webster's. 2011. "Ethmoidal" http://smartdefine.org/ethmoidal/definitions/2005005 (accessed September 21, 2026). |
| Harvard | Webster's 2011, Ethmoidal, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/ethmoidal/definitions/2005005>. |
| MLA | Webster's. "Ethmoidal" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/ethmoidal/definitions/2005005> |