DICT.TW Dictionary Taiwan

 gal·le·ass /ˈgæliəs/
 三桅帆裝軍艦

 Gal·le·ass n.  Naut. A large galley, having some features of the galleon, as broadside guns; esp., such a vessel used by the southern nations of Europe in the 16th and 17th centuries. See Galleon, and Galley. [Written variously galeas, gallias, etc.]
 Note: ☞ “The galleasses . . . were a third larger than the ordinary galley, and rowed each by three hundred galley slaves. They consisted of an enormous towering structure at the stern, a castellated structure almost equally massive in front, with seats for the rowers amidships.”
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