ar·​e·​na·​vi·​rus | \ ˌer-ə-nə-ˈvī-rəs How to pronounce arenavirus (audio) , ˌa-rə- \

Definition of arenavirus

: any of a family (Arenaviridae) of single-stranded RNA viruses having a dense outer lipid envelope covered by numerous club-shaped projections and including the causative agents of lymphocytic choriomeningitis and Lassa fever

First Known Use of arenavirus

1971, in the meaning defined above

History and Etymology for arenavirus

New Latin, ultimately from Latin arena sand + New Latin virus; from the fine granules seen in cross sections of the virion

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Time Traveler for arenavirus

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The first known use of arenavirus was in 1971

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Cite this Entry

“Arenavirus.” Dictionary, Merriam-Webster, Accessed 27 Feb. 2020.

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are·​na·​vi·​rus | \ ˌar-ə-nə-ˈvī-rəs, ə-ˌrē- \

Medical Definition of arenavirus

1 capitalized : a genus of the family Arenaviridae that includes the Machupo virus, the Junin virus, and the causative agents of lymphocytic choriomeningitis and Lassa fever
2 : any of the family Arenaviridae of single-stranded RNA viruses

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