are·na·vi·rus noun \ˌar-ə-nə-ˈvī-rəs, ə-ˌrē-\
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
: any of the family Arenaviridae of single-stranded RNA viruses
Seen & Heard
What made you want to look up arenavirus? Please tell us where you read or heard it (including the quote, if possible).