Sphe*neth"moid (?), a. [Sphenoid + ethmoid.] Anat.
Of or pertaining to both the sphenoidal and the ethmoidal regions of the skull, or the sphenethmoid bone; sphenethmoidal.
Sphenethmoid bone Anat., a bone of the skull which surrounds the anterior end of the brain in many amphibia; the girdle bone.
© Webster 1913.
Sphe*neth"moid, n. Anat.
The sphenethmoid bone.
© Webster 1913.