an·​ti·​vi·​rus | \ ˌan-tē-ˈvī-rəs How to pronounce antivirus (audio) , ˌan-tī-\

Definition of antivirus

1 : used to protect a computer from viruses : antiviral antivirus software
2 medical : acting, effective, or directed against viruses : antiviral an antivirus vaccine

Examples of antivirus in a Sentence

Recent Examples on the Web

To Wardle's surprise, results from VirusTotal at the time showed that only two antivirus providers—Kaspersky and ZoneAlarm—detected the file as malicious. Dan Goodin, Ars Technica, "Four months after its debut, sneaky Mac malware went undetected by AV providers," 21 Dec. 2018 This last test pits antivirus suites against more than 20,000 malware samples. Ian Paul, PCWorld, "K7 Ultimate Security review: Simple yet sophisticated," 28 Aug. 2018 In 2013, antivirus company Kaspersky Lab reported that hackers using computers with Chinese and Korean language configurations used a backdoor dubbed Winnti to infect more than 30 online video game companies over the previous four years. Dan Goodin, Ars Technica, "Report: Chinese government is behind a decade of hacks on software companies," 5 May 2018 People who suspect they have been infected should install antivirus protection from a name-brand provider and thoroughly scan their systems ASAP. Dan Goodin, Ars Technica, "Rash of Fortnite cheaters infected by malware that breaks HTTPS encryption," 3 July 2018 The first hospital gave him antivirus medicine and pain pills without examining him. Jay Reddick,, "DJZ overcomes horrific injury to find Impact Wrestling success," 27 June 2018 Keeping your browser updated and antivirus vigilant can help protect against it. Brad Chacos, PCWorld, "What you need to know about Speculative Store Bypass, the Spectre-like 'Variant 4' CPU flaw," 22 May 2018 This was due to the particularly invasive nature of the Meltdown fix: Microsoft found that certain antivirus products manipulated Windows' kernel memory in unsupported ways that would crash systems with the Meltdown fix applied. Peter Bright, Ars Technica, "Patch Tuesday drops the mandatory antivirus requirement after all," 13 Mar. 2018 This includes downloading daily antivirus protection software, monitoring servers and daily logs, conducting a vulnerability assessment, and taking other steps. Eric Shawn, Fox News, "States bolster defenses against Russia election hacking," 13 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'antivirus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of antivirus

1892, in the meaning defined at sense 2

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Statistics for antivirus

Last Updated

30 Mar 2019

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Time Traveler for antivirus

The first known use of antivirus was in 1892

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English Language Learners Definition of antivirus

: used to protect a computer from viruses

More from Merriam-Webster on antivirus

Spanish Central: Translation of antivirus

Nglish: Translation of antivirus for Spanish Speakers

Comments on antivirus

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an act or instance of returning to life

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