Xebec n. : A small three-masted vessel, with projecting bow stern and convex decks, used in the Mediterranean for transporting merchandise, etc. It carries large square sails, or both. Xebecs were formerly armed and used by corsairs.

Example:
I am looking for information on the Indiscret a corsair Xebec built in france in 1750 0?

Taxonomy
xebec, guns, sails, free encyclopedia, oars, corsairs, burthen, sailing vessel, chebec, zebec, vessel, nineteenth centuries, the Mediterranean, disk drive controller, jabeque, language text, bowsprit, Mediterranean Sea.

Defination from the web:
xebec (pronounced /ˈziːbɛk/ or /zɨˈbɛk/), also spelt zebec, was a Mediterranean sailing ship that was used mostly for trading. ... In the eighteenth and early nineteenth centuries, a large polacre-xebec carried a square rig on the foremast, lateen sails on the other masts, a ...