sphenethmoid🔊adjEtymology From sphen- + ethmoid.1Anatomy, Medicine, Sciences Of or relating to the sphenoidal and ethmoidal regions of the skull.Synonymssphenoethmoid
sphenethmoid🔊nounEtymology From sphen- + ethmoid.1Anatomy, Medicine, Sciences A bone of the skull that surrounds the anterior end of the brain in many amphibians.