Any of the interlobular excretory ducts of the parotid gland which are found in the connective tissue septa and formed by the union of several intralobular striated (secretory) ducts; ultimately, the excretory ducts of the parotid gland coalesce and form a single main excretory duct (Stensen's duct) that opens into the oral cavity; excretory ducts do not change the secretory product. [ MP:0013750 ]