HYPOGLOSSIS, or HYPOGLOSSIS, (composed of ὑπο, under, and γλωσσα, 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 venae ranulares; 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.