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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

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Set up automatic transfers into bank accounts, use password managers to access your online accounts and boost your computer data security with antivirus software and other precautionary steps.

From MarketWatch • Mar. 26, 2026

The collection wasn’t related to its VPN offering; it was happening with Avast’s antivirus products.

From Salon • Mar. 21, 2026

Avast, based in the Czech Republic, is well-known for its antivirus products.

From Salon • Mar. 21, 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