HYPOGLOTTIS, or HYPOGLOSSIS, (composed of ὑπς, under, and γλωττα, tongue), in Anatomy, is a name given to two glands of the tongue. There are four large glands of the tongue; two of them called hypoglossides, situated under it, near the vena ranularis: one on each side of the tongue. They serve to secrete a kind of serous matter of the nature of saliva, which is discharged into the mouth by little ducts near the gums.