n. yellow flag flown by itself by a ship requesting pratique on entering a harbor to indicate that the ship has no disease on board; flag flown by a ship with another flag to indicate that it has contagious or infectious disease aboard; yellow flag raised by a ship that has been quarantined
QUARANTINE FLAG
Meaning of QUARANTINE FLAG in English
Explanatory English dictionary bed edition. Толковый словарь английского языка Редакция bed. 2012