noun
: a yellow flag hoisted by all ships to request pratique on entering a harbor, by a ship to show that it has contagious or infectious disease aboard, or by a ship that has been quarantined — called also yellow flag, yellow jack
noun
: a yellow flag hoisted by all ships to request pratique on entering a harbor, by a ship to show that it has contagious or infectious disease aboard, or by a ship that has been quarantined — called also yellow flag, yellow jack
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012