Definitions

1. noun

A type of sailing warship in the 16th century, having two or three masts and a lateen or square-rigged foremast, with a single gun deck and often three or four masts.

“The naval historian studied the design of the 16th-century galleass, noting its unique features.”

2. noun

A type of ship propelled by oars and sails.

“The Venetian galleass was famous for its speed and maneuverability during the Battle of Lepanto.”