mast house

noun Nautical.

a deckhouse built around a mast as a platform for cargo-handling machinery, gear, and controls.
(formerly) a towerlike crane for stepping and removing masts from ships or boats.
a building in which masts are made.

Origin of mast house

First recorded in 1760–70 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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