Meaning of mast house

mast' house"

Pronunciation: [key]
  1. a deckhouse built around a mast as a platform for cargo-handling machinery, gear, and controls.
  2. (formerly) a towerlike crane for stepping and removing masts from ships or boats.
  3. a building in which masts are made.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.