Definition of Zika virus
1
: a flavivirus (species Zika virus of the genus Flavivirus) typically transmitted by aedes mosquitoes (especially Aedes aegypti and A. albopictus) that causes a usually mild illness marked chiefly by fever, joint pain, rash, and conjunctivitis and that has been associated with an increased incidence of microcephaly in infants born to pregnant women infected with the virus
2
or less commonly
Zika fever
: the illness caused by Zika virus
