Synonyms for Submandibular Salivary Gland (same or very similar meaning)
WordNet sense 1 (a salivary gland inside the lower jaw on either side that produces most of the nocturnal saliva; discharges saliva into the mouth under the tongue):
submaxillary gland, mandibular gland, submandibular gland, submaxillary salivary glandFrom the ODE community, based on WordNetadd/edit