Eth`mo·vo'mer·ine noun [ Ethm oid + vomerine .] (Anat.) Pertaining to the region of the vomer and the base of the ethmoid in the skull. Ethmovomerine plate (Anat.) , a cartilaginous plate beneath the front of the fetal brain which the ethmoid region of the sku... Found on http://www.encyclo.co.uk/webster/E/70