noun-modifying (irregular)
antiviral
Used prenominally to describe drugs, treatments, software, or measures that work against viruses.
The doctor prescribed an antiviral drug.
You need to install antivirus software.
antiviral drug; antiviral agent
antiviral drug
Compound of 抗 (こう, 'anti-') and ウイルス ('virus'). The prefix 抗 is productive in medical and technical terms.