barquentinePronunciation: /ˈbɑːk(ə)ntiːn/ (US barkentine)Definition of barquentine noun a sailing ship similar to a barque but with only the foremast square-rigged and the remaining masts rigged fore and aft. Origin: late 17th century: from barque, on the pattern of brigantinebarquentine in other Oxford dictionaries Definition of barquentine in the US English dictionary