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antivirus

British  
/ ˈæntɪˌvaɪrəs /

noun

  1. (modifier) a piece of software designed to prevent viruses entering a computer system or network

    antivirus software

  2. (modifier) of or relating to such a piece of software

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Last November, Google’s Threat Intelligence Group published a report showing that bad actors are deploying AI-enhanced malware with the capability to rewrite its source code midexecution to avoid antivirus software.

From MarketWatch • Apr. 18, 2026

Its unlimited device support and bundled extras, including antivirus, data breach alerts and a private search engine, make it a cost-effective all-in-one solution.

From Salon • Mar. 27, 2026

You still need antivirus software, safe browsing practices, and common sense to protect against these threats.

From Salon • Feb. 12, 2026

“Scammers thrive on pressure, distraction, and emotional decision-making, and the holiday season delivers all three in spades,” said Leyla Bilge, director of scam research at Norton, which provides antivirus and anti-malware software.

From MarketWatch • Nov. 25, 2025

The antivirus directory has anti-virus programs for MS- DOS and Macintosh computers.

From Big Dummy's Guide to the Internet by Electronic Frontier Foundation