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The Collaborative International Dictionary
Aliethmoidal

Aliethmoid \Al`i*eth"moid\, Aliethmoidal \Al`i*eth*moid"al\, a. [L. ala wing + E. ethomoid.] (Anat.) Pertaining to expansions of the ethmoid bone or cartilage.

Wiktionary
aliethmoidal

a. (context anatomy English) Relating to expansions of the ethmoid bone or cartilage.