conduit Synonyms

plumbing tramway transmitter transudation trench trough tube tubing tubular tunnel turnstile uniter urethra urethral valve towpath tideway portcullis race rindle sewer shute siphon sluice sluiceway spillway spout subway syke tailrace thill vas vehicle microtubule millrace millrun floodgate pipes channels pib pentode racecourse revolving door septic tank trunking ducts pipelines channelization raceway vena