yellow fever

yellow fever

noun

Definition of YELLOW FEVER

: an acute infectious disease of warm regions (as sub-Saharan Africa and tropical South America) marked by sudden onset, prostration, fever, and headache and sometimes albuminuria, jaundice, and hemorrhage and caused by a single-stranded RNA virus of the genus Flavivirus (species Yellow fever virus) transmitted especially by the yellow-fever mosquito—called also yellow jack