arenavirus
noun
ar·e·na·vi·rus ˌer-ə-nə-ˈvī-rəs 
ˌa-rə-
: 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
Example Sentences
Recent Examples on the Web In the lab, Arturo prepared grids of viral proteins to better visualize a particular pathogen—a type of arenavirus—and discover how to neutralize it. 
Jillian Kramer, Scientific American, 12 Aug. 2020
Jillian Kramer, Scientific American, 12 Aug. 2020 Word History
Etymology
New Latin, ultimately from Latin arena sand + New Latin virus; from the fine granules seen in cross sections of the virion
First Known Use
1971, in the meaning defined above
Medical Definition
arenavirus
noun
are·na·vi·rus
ˌar-ə-nə-ˈvī-rəs, ə-ˌrē-
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