Webster’s Revised Unabridged Dictionary · 1913
Sphenotic
Sphe·not′ic (·nŏt′ĭk), a. [Spheno- + οὖς, ὠτός, the ear.] (Anat.) Of, pertaining to, or designating, the sphenotic bone.
Sphenotic bone (Anat.), a bone on the anterior side of the auditory capsule of many fishes, and connected with, or adjoining, the sphenoid bone.
Sphe·not′ic, n. (Anat.) The sphenotic bone.