sphenethmoid

CIDE DICTIONARY

sphenethmoid, a. [Sphenoid + ethmoid.].

Of or pertaining to both the sphenoidal and the ethmoidal regions of the skull, or the sphenethmoid bone; sphenethmoidal. [1913 Webster]

Sphenethmoid bone (Anat.), a bone of the skull which surrounds the anterior end of the brain in many amphibia; the girdle bone.

sphenethmoid, n.

The sphenethmoid bone. [1913 Webster]