canal, channel, pipeline, conduit, tubing, speaking tube, ductway, flue, drainage pipe, leader, more...

channel, release, disperse, distribute, spread

flexible, rigid, aluminum, steel, plastic, duct tape, more...

common, cystic, hepatic, main, pancreatic, thoracic, nasolacrimal, ejaculatory, wolffian, right, parotid

anatomical canals,   anatomical channel,   valve or channel,   tear conduits,   anatomical ducts,   anatomical passage,   open pipe,   anatomical tube,   airway metal