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antivirus software

/ænˈtaɪvərəs sɒftˈweər/ · an.ti.vi.rus.soft.ware
noun
  1. Software designed to detect, prevent, and remove malware from computers. She installed antivirus software on her laptop to protect against ransomware attacks.
  2. A type of software that scans and removes viruses and other types of malware from a computer system. The company's antivirus software was able to detect and remove the Trojan horse virus from their network.
Did you know? The first antivirus software, called 'PKVir', was created in 1987 by a Czech programmer named Peter Paško. It was designed to detect and remove the 'Brain' virus, which was one of the first computer viruses.
Written by Lexi Wordsworth, Dictionary Editor 1 lookups Added Jul 28, 2026