Origin: Greek prefix anti-
Definition, synonyms and related words
A piece of software that is used to detect, delete and or neutralize computer-based viruses.
"Users should install reliable antivirus software on their computers to protect against malicious threats."
In plain English: Antivirus is software that scans your computer for harmful programs and deletes them to keep it safe.
"You should install antivirus software on your computer to protect against viruses."
Usage: Antivirus refers specifically to the protective program installed on your device rather than the malicious code itself. Use this term when discussing security tools designed to scan for and remove threats like malware or worms.
The word antivirus is formed by combining the prefix anti-, meaning against or opposite to, with the noun virus. It entered English as a compound term describing software designed to fight computer viruses.