anti-virus
adjective [ before noun ]
IT uk/ˌæntiˈvaɪərəs/ us/ˌæntaɪ-/ (abbreviation AV) (also antiviral)
protecting against computer viruses:
Update your anti-virus software regularly.
an anti-virus program/tool/utility
anti-virus protection
involved in the production of products that protect against computer viruses:
Anti-virus companies have been tracking the virus.