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yellow jack

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yellow jack

–noun, plural (especially collectively) jack, (especially referring to two or more kinds or species) jacks for 3.
1. Informal. quarantine flag.
2. Pathology. yellow fever.
3. any carangoid fish, esp. a Caribbean food fish, Caranx bartholomaei.

Origin:
1830–40, Americanism

yellow fever

–noun Pathology.
an acute, often fatal, infectious febrile disease of warm climates, caused by an RNA virus transmitted by a mosquito, esp. Aedes aegypti, and characterized by liver damage and jaundice.
Also called yellow jack.


Origin:
1730–40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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yellow fever  
n.  An infectious tropical disease caused by an arbovirus transmitted by mosquitoes of the genera Aedes, especially A. aegypti, and Haemagogus and characterized by high fever, jaundice, and often gastrointestinal hemorrhaging. Also called yellow jack.
yellow jack  
n.  
  1. A yellowish-silver carangid food fish (Caranx bartholomaei) of western Atlantic and Caribbean waters.

  2. Nautical A yellow flag hoisted on a ship to request pratique or warn of disease on board.

  3. See yellow fever.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: yellow fever
Function: noun
: an acute destructive disease of warm regions marked by sudden onset, prostration, fever, albuminuria, jaundice, and oftenhemorrhage and caused by a flavivirus (genus Flavivirus) transmitted especially by a mosquito of the genus Aedes (A. aegypti) called also yellow jack

Main Entry: yellow jack
Function: noun
1 : YELLOW FEVER
2 : QUARANTINE FLAG
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

yellow fever n.
An infectious tropical disease caused by an arbovirus transmitted by mosquitoes of the genera Aedes, especially A. aegypti, and Haemagogus and characterized by high fever, jaundice, and vomit that is dark in color as a result of gastrointestinal hemorrhaging.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
yellow fever   (yěl'ō)  Pronunciation Key 
A life-threatening infectious disease caused by a virus of the genus Flavivirus and characterized by fever, jaundice, and internal bleeding. Yellow fever occurs mainly in tropical regions of Africa and Latin America and is transmitted by mosquitoes.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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