quarantine flag

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

Dictionary Entries Near quarantine flag

Cite this Entry

“Quarantine flag.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/quarantine%20flag. Accessed 15 Oct. 2024.

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