WordReference Random House Unabridged Dictionary of American English © 2020
ar•bo•vi•rus  (ärbə vī′rəs),USA pronunciation n., pl.  -rus•es. 
  1. Microbiologyany of several groups of RNA-containing viruses that are transmitted by bloodsucking arthropods, as ticks, fleas, or mosquitoes, and may cause encephalitis, yellow fever, or dengue fever.
  • ar(thropod-) bo(rne) virus 1955–60

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