(n)a small salivary gland that produces mucin (the viscous component of saliva); in human beings it is located on either side of the mouth under the tongue, Syn.sublingual salivary gland
a. [ Pref. sub + lingual: cf. F. sublingual. ] (Anat.) (a) Situated under the tongue; as, the sublingual gland. (b) Of or pertaining to the sublingual gland; as, sublingual salvia. [ 1913 Webster ]