shaft tunnel

noun
variants: or shaft alley

Definition of shaft tunnel

: a narrow watertight compartment through which the propeller shaft of a ship passes from the after engine-room bulkhead to the stern tube

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Cite this Entry

“Shaft tunnel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/shaft%20tunnel. Accessed 17 Jan. 2021.

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