a. Having three masts. So Three-masted a.; Three-master [MASTER sb.2], a three-masted ship.
1775. Dalrymple, in Phil. Trans., LXVIII. 392. Two three-mast vessels with latine sails.
1839. Marryat, Phant. Ship, vi. A three-masted vessel.
1883. De Forest, in Harper’s Mag., March, 519/2. This ghost of a great three-master.
