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Noun: yellow jack  ye-low-jak
  1. Caused by a flavivirus transmitted by a mosquito
    - yellow fever, black vomit
     
  2. Yellow flag hoist on a ship in quarantine
     
  3. Fish of western Atlantic and Gulf of Mexico
    - Caranx bartholomaei

Derived forms: yellow jacks

Type of: flag, infectious disease, jack

Encyclopedia: Yellow jack